MPU6050 Electronic Cats Library Example Does Not Compile

I ma using an MPU6050 with Ardunio Uno R3 board. I have tested MPU6050 libraries by Adafruit and Electronic Cats (Jeff Rowberg?) and have successfully read accelerometer, gyroscope and temperature values.

However, I have run into problems while using an example MPU6050_DMP6 provided by Electronics Cat MPU6050 library. This example requires ToxicLibs to be installed in order to run properly. I have downloaded the toxiclibs-complete-0021.zip from the URL Releases · postspectacular/toxiclibs · GitHub specified in the example sketch. When I add this library using Sketch-->Include Library-->Add .ZIP Library-->toxiclibs-complete-0021.zip , I get the following error:

Error: 13 INTERNAL: Library install failed: archive is not valid: multiple files found in zip file top level

Then unzipped the folder toxiclibs-complete-0021.zip and copied just the folder toxiclibs-complete-0021/toxiclibscore to the Arduino/libraries/ folder where folders of other libraries are present. Next I tried to compile the example sketch MPU6050_DMP6, but still I get errors.

The example sketch is as follows:

// I2C device class (I2Cdev) demonstration Processing sketch for MPU6050 DMP output
// 6/20/2012 by Jeff Rowberg <jeff@rowberg.net>
// Updates should (hopefully) always be available at https://github.com/jrowberg/i2cdevlib
//
// Changelog:
//     2012-06-20 - initial release

/* ============================================
I2Cdev device library code is placed under the MIT license
Copyright (c) 2012 Jeff Rowberg

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
===============================================
*/

import processing.serial.*;
import processing.opengl.*;
import toxi.geom.*;
import toxi.processing.*;

// NOTE: requires ToxicLibs to be installed in order to run properly.
// 1. Download from https://github.com/postspectacular/toxiclibs/releases
// 2. Extract into [userdir]/Processing/libraries
//    (location may be different on Mac/Linux)
// 3. Run and bask in awesomeness

ToxiclibsSupport gfx;

Serial port;                         // The serial port
char[] teapotPacket = new char[14];  // InvenSense Teapot packet
int serialCount = 0;                 // current packet byte position
int synced = 0;
int interval = 0;

float[] q = new float[4];
Quaternion quat = new Quaternion(1, 0, 0, 0);

float[] gravity = new float[3];
float[] euler = new float[3];
float[] ypr = new float[3];

void setup() {
    // 300px square viewport using OpenGL rendering
    size(300, 300, OPENGL);
    gfx = new ToxiclibsSupport(this);

    // setup lights and antialiasing
    lights();
    smooth();
  
    // display serial port list for debugging/clarity
    println(Serial.list());

    // get the first available port (use EITHER this OR the specific port code below)
    String portName = Serial.list()[0];
    
    // get a specific serial port (use EITHER this OR the first-available code above)
    //String portName = "COM4";
    
    // open the serial port
    port = new Serial(this, portName, 115200);
    
    // send single character to trigger DMP init/start
    // (expected by MPU6050_DMP6 example Arduino sketch)
    port.write('r');
}

void draw() {
    if (millis() - interval > 1000) {
        // resend single character to trigger DMP init/start
        // in case the MPU is halted/reset while applet is running
        port.write('r');
        interval = millis();
    }
    
    // black background
    background(0);
    
    // translate everything to the middle of the viewport
    pushMatrix();
    translate(width / 2, height / 2);

    // 3-step rotation from yaw/pitch/roll angles (gimbal lock!)
    // ...and other weirdness I haven't figured out yet
    //rotateY(-ypr[0]);
    //rotateZ(-ypr[1]);
    //rotateX(-ypr[2]);

    // toxiclibs direct angle/axis rotation from quaternion (NO gimbal lock!)
    // (axis order [1, 3, 2] and inversion [-1, +1, +1] is a consequence of
    // different coordinate system orientation assumptions between Processing
    // and InvenSense DMP)
    float[] axis = quat.toAxisAngle();
    rotate(axis[0], -axis[1], axis[3], axis[2]);

    // draw main body in red
    fill(255, 0, 0, 200);
    box(10, 10, 200);
    
    // draw front-facing tip in blue
    fill(0, 0, 255, 200);
    pushMatrix();
    translate(0, 0, -120);
    rotateX(PI/2);
    drawCylinder(0, 20, 20, 8);
    popMatrix();
    
    // draw wings and tail fin in green
    fill(0, 255, 0, 200);
    beginShape(TRIANGLES);
    vertex(-100,  2, 30); vertex(0,  2, -80); vertex(100,  2, 30);  // wing top layer
    vertex(-100, -2, 30); vertex(0, -2, -80); vertex(100, -2, 30);  // wing bottom layer
    vertex(-2, 0, 98); vertex(-2, -30, 98); vertex(-2, 0, 70);  // tail left layer
    vertex( 2, 0, 98); vertex( 2, -30, 98); vertex( 2, 0, 70);  // tail right layer
    endShape();
    beginShape(QUADS);
    vertex(-100, 2, 30); vertex(-100, -2, 30); vertex(  0, -2, -80); vertex(  0, 2, -80);
    vertex( 100, 2, 30); vertex( 100, -2, 30); vertex(  0, -2, -80); vertex(  0, 2, -80);
    vertex(-100, 2, 30); vertex(-100, -2, 30); vertex(100, -2,  30); vertex(100, 2,  30);
    vertex(-2,   0, 98); vertex(2,   0, 98); vertex(2, -30, 98); vertex(-2, -30, 98);
    vertex(-2,   0, 98); vertex(2,   0, 98); vertex(2,   0, 70); vertex(-2,   0, 70);
    vertex(-2, -30, 98); vertex(2, -30, 98); vertex(2,   0, 70); vertex(-2,   0, 70);
    endShape();
    
    popMatrix();
}

void serialEvent(Serial port) {
    interval = millis();
    while (port.available() > 0) {
        int ch = port.read();

        if (synced == 0 && ch != '$') return;   // initial synchronization - also used to resync/realign if needed
        synced = 1;
        print ((char)ch);

        if ((serialCount == 1 && ch != 2)
            || (serialCount == 12 && ch != '\r')
            || (serialCount == 13 && ch != '\n'))  {
            serialCount = 0;
            synced = 0;
            return;
        }

        if (serialCount > 0 || ch == '$') {
            teapotPacket[serialCount++] = (char)ch;
            if (serialCount == 14) {
                serialCount = 0; // restart packet byte position
                
                // get quaternion from data packet
                q[0] = ((teapotPacket[2] << 8) | teapotPacket[3]) / 16384.0f;
                q[1] = ((teapotPacket[4] << 8) | teapotPacket[5]) / 16384.0f;
                q[2] = ((teapotPacket[6] << 8) | teapotPacket[7]) / 16384.0f;
                q[3] = ((teapotPacket[8] << 8) | teapotPacket[9]) / 16384.0f;
                for (int i = 0; i < 4; i++) if (q[i] >= 2) q[i] = -4 + q[i];
                
                // set our toxilibs quaternion to new data
                quat.set(q[0], q[1], q[2], q[3]);

                /*
                // below calculations unnecessary for orientation only using toxilibs
                
                // calculate gravity vector
                gravity[0] = 2 * (q[1]*q[3] - q[0]*q[2]);
                gravity[1] = 2 * (q[0]*q[1] + q[2]*q[3]);
                gravity[2] = q[0]*q[0] - q[1]*q[1] - q[2]*q[2] + q[3]*q[3];
    
                // calculate Euler angles
                euler[0] = atan2(2*q[1]*q[2] - 2*q[0]*q[3], 2*q[0]*q[0] + 2*q[1]*q[1] - 1);
                euler[1] = -asin(2*q[1]*q[3] + 2*q[0]*q[2]);
                euler[2] = atan2(2*q[2]*q[3] - 2*q[0]*q[1], 2*q[0]*q[0] + 2*q[3]*q[3] - 1);
    
                // calculate yaw/pitch/roll angles
                ypr[0] = atan2(2*q[1]*q[2] - 2*q[0]*q[3], 2*q[0]*q[0] + 2*q[1]*q[1] - 1);
                ypr[1] = atan(gravity[0] / sqrt(gravity[1]*gravity[1] + gravity[2]*gravity[2]));
                ypr[2] = atan(gravity[1] / sqrt(gravity[0]*gravity[0] + gravity[2]*gravity[2]));
    
                // output various components for debugging
                //println("q:\t" + round(q[0]*100.0f)/100.0f + "\t" + round(q[1]*100.0f)/100.0f + "\t" + round(q[2]*100.0f)/100.0f + "\t" + round(q[3]*100.0f)/100.0f);
                //println("euler:\t" + euler[0]*180.0f/PI + "\t" + euler[1]*180.0f/PI + "\t" + euler[2]*180.0f/PI);
                //println("ypr:\t" + ypr[0]*180.0f/PI + "\t" + ypr[1]*180.0f/PI + "\t" + ypr[2]*180.0f/PI);
                */
            }
        }
    }
}

void drawCylinder(float topRadius, float bottomRadius, float tall, int sides) {
    float angle = 0;
    float angleIncrement = TWO_PI / sides;
    beginShape(QUAD_STRIP);
    for (int i = 0; i < sides + 1; ++i) {
        vertex(topRadius*cos(angle), 0, topRadius*sin(angle));
        vertex(bottomRadius*cos(angle), tall, bottomRadius*sin(angle));
        angle += angleIncrement;
    }
    endShape();
    
    // If it is not a cone, draw the circular top cap
    if (topRadius != 0) {
        angle = 0;
        beginShape(TRIANGLE_FAN);
        
        // Center point
        vertex(0, 0, 0);
        for (int i = 0; i < sides + 1; i++) {
            vertex(topRadius * cos(angle), 0, topRadius * sin(angle));
            angle += angleIncrement;
        }
        endShape();
    }
  
    // If it is not a cone, draw the circular bottom cap
    if (bottomRadius != 0) {
        angle = 0;
        beginShape(TRIANGLE_FAN);
    
        // Center point
        vertex(0, tall, 0);
        for (int i = 0; i < sides + 1; i++) {
            vertex(bottomRadius * cos(angle), tall, bottomRadius * sin(angle));
            angle += angleIncrement;
        }
        endShape();
    }
}

Here are the error messages that I get:

/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:144:18: error: variable or field 'serialEvent' declared void
 void serialEvent(Serial port) {
                  ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:144:25: error: expected ')' before 'port'
 void serialEvent(Serial port) {
                         ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:32:1: error: 'import' does not name a type; did you mean 'qsort'?
 import processing.serial.*;
 ^~~~~~
 qsort
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:33:1: error: 'import' does not name a type; did you mean 'qsort'?
 import processing.opengl.*;
 ^~~~~~
 qsort
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:34:1: error: 'import' does not name a type; did you mean 'qsort'?
 import toxi.geom.*;
 ^~~~~~
 qsort
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:35:1: error: 'import' does not name a type; did you mean 'qsort'?
 import toxi.processing.*;
 ^~~~~~
 qsort
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:43:1: error: 'ToxiclibsSupport' does not name a type
 ToxiclibsSupport gfx;
 ^~~~~~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:45:1: error: 'Serial' does not name a type
 Serial port;                         // The serial port
 ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:46:5: error: decomposition declaration cannot be declared with type 'char'
 char[] teapotPacket = new char[14];  // InvenSense Teapot packet
     ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:46:5: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:46:5: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:46:8: error: expected initializer before 'teapotPacket'
 char[] teapotPacket = new char[14];  // InvenSense Teapot packet
        ^~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:51:6: error: decomposition declaration cannot be declared with type 'float'
 float[] q = new float[4];
      ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:51:6: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:51:6: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:51:9: error: expected initializer before 'q'
 float[] q = new float[4];
         ^
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:52:19: error: conversion from 'Quaternion*' to non-scalar type 'Quaternion' requested
 Quaternion quat = new Quaternion(1, 0, 0, 0);
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:54:6: error: decomposition declaration cannot be declared with type 'float'
 float[] gravity = new float[3];
      ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:54:6: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:54:6: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:54:9: error: expected initializer before 'gravity'
 float[] gravity = new float[3];
         ^~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:55:6: error: decomposition declaration cannot be declared with type 'float'
 float[] euler = new float[3];
      ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:55:6: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:55:6: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:55:9: error: expected initializer before 'euler'
 float[] euler = new float[3];
         ^~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:56:6: error: decomposition declaration cannot be declared with type 'float'
 float[] ypr = new float[3];
      ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:56:6: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:56:6: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:56:9: error: expected initializer before 'ypr'
 float[] ypr = new float[3];
         ^~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde: In function 'void setup()':
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:58:6: error: redefinition of 'void setup()'
 void setup() {
      ^~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPU6050_DMP6.ino:165:6: note: 'void setup()' previously defined here
 void setup() {
      ^~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:60:20: error: 'OPENGL' was not declared in this scope
     size(300, 300, OPENGL);
                    ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:60:5: error: 'size' was not declared in this scope
     size(300, 300, OPENGL);
     ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:60:5: note: suggested alternative: 'Wire'
     size(300, 300, OPENGL);
     ^~~~
     Wire
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:61:5: error: 'gfx' was not declared in this scope
     gfx = new ToxiclibsSupport(this);
     ^~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:61:15: error: expected type-specifier before 'ToxiclibsSupport'
     gfx = new ToxiclibsSupport(this);
               ^~~~~~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:64:5: error: 'lights' was not declared in this scope
     lights();
     ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:64:5: note: suggested alternative: 'gets'
     lights();
     ^~~~~~
     gets
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:65:5: error: 'smooth' was not declared in this scope
     smooth();
     ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:65:5: note: suggested alternative: 'short'
     smooth();
     ^~~~~~
     short
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:68:20: error: 'class HardwareSerial' has no member named 'list'
     println(Serial.list());
                    ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:68:5: error: 'println' was not declared in this scope
     println(Serial.list());
     ^~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:68:5: note: suggested alternative: 'printf'
     println(Serial.list());
     ^~~~~~~
     printf
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:71:30: error: 'class HardwareSerial' has no member named 'list'
     String portName = Serial.list()[0];
                              ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:77:5: error: 'port' was not declared in this scope
     port = new Serial(this, portName, 115200);
     ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:77:5: note: suggested alternative: 'word'
     port = new Serial(this, portName, 115200);
     ^~~~
     word
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:77:16: error: expected type-specifier before 'Serial'
     port = new Serial(this, portName, 115200);
                ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde: In function 'void draw()':
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:88:9: error: 'port' was not declared in this scope
         port.write('r');
         ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:88:9: note: suggested alternative: 'word'
         port.write('r');
         ^~~~
         word
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:93:5: error: 'background' was not declared in this scope
     background(0);
     ^~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:93:5: note: suggested alternative: 'round'
     background(0);
     ^~~~~~~~~~
     round
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:96:5: error: 'pushMatrix' was not declared in this scope
     pushMatrix();
     ^~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:97:15: error: 'width' was not declared in this scope
     translate(width / 2, height / 2);
               ^~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:97:26: error: 'height' was not declared in this scope
     translate(width / 2, height / 2);
                          ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:97:5: error: 'translate' was not declared in this scope
     translate(width / 2, height / 2);
     ^~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:109:10: error: decomposition declaration cannot be declared with type 'float'
     float[] axis = quat.toAxisAngle();
          ^~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:109:10: note: type must be cv-qualified 'auto' or reference to cv-qualified 'auto'
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:109:10: error: empty decomposition declaration
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:109:13: error: expected initializer before 'axis'
     float[] axis = quat.toAxisAngle();
             ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:110:12: error: 'axis' was not declared in this scope
     rotate(axis[0], -axis[1], axis[3], axis[2]);
            ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:110:12: note: suggested alternative: 'exit'
     rotate(axis[0], -axis[1], axis[3], axis[2]);
            ^~~~
            exit
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:110:5: error: 'rotate' was not declared in this scope
     rotate(axis[0], -axis[1], axis[3], axis[2]);
     ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:110:5: note: suggested alternative: 'rename'
     rotate(axis[0], -axis[1], axis[3], axis[2]);
     ^~~~~~
     rename
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:113:5: error: 'fill' was not declared in this scope
     fill(255, 0, 0, 200);
     ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:113:5: note: suggested alternative: 'ftell'
     fill(255, 0, 0, 200);
     ^~~~
     ftell
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:114:5: error: 'box' was not declared in this scope
     box(10, 10, 200);
     ^~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:120:5: error: 'rotateX' was not declared in this scope
     rotateX(PI/2);
     ^~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:122:5: error: 'popMatrix' was not declared in this scope
     popMatrix();
     ^~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:126:16: error: 'TRIANGLES' was not declared in this scope
     beginShape(TRIANGLES);
                ^~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:126:5: error: 'beginShape' was not declared in this scope
     beginShape(TRIANGLES);
     ^~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:126:5: note: suggested alternative: 'blinkState'
     beginShape(TRIANGLES);
     ^~~~~~~~~~
     blinkState
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:127:5: error: 'vertex' was not declared in this scope
     vertex(-100,  2, 30); vertex(0,  2, -80); vertex(100,  2, 30);  // wing top layer
     ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:131:5: error: 'endShape' was not declared in this scope
     endShape();
     ^~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:132:16: error: 'QUADS' was not declared in this scope
     beginShape(QUADS);
                ^~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde: At global scope:
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:144:18: error: variable or field 'serialEvent' declared void
 void serialEvent(Serial port) {
                  ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:144:25: error: expected ')' before 'port'
 void serialEvent(Serial port) {
                         ^~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde: In function 'void drawCylinder(float, float, float, int)':
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:207:16: error: 'QUAD_STRIP' was not declared in this scope
     beginShape(QUAD_STRIP);
                ^~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:207:5: error: 'beginShape' was not declared in this scope
     beginShape(QUAD_STRIP);
     ^~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:207:5: note: suggested alternative: 'blinkState'
     beginShape(QUAD_STRIP);
     ^~~~~~~~~~
     blinkState
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:209:9: error: 'vertex' was not declared in this scope
         vertex(topRadius*cos(angle), 0, topRadius*sin(angle));
         ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:213:5: error: 'endShape' was not declared in this scope
     endShape();
     ^~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:218:20: error: 'TRIANGLE_FAN' was not declared in this scope
         beginShape(TRIANGLE_FAN);
                    ^~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:221:9: error: 'vertex' was not declared in this scope
         vertex(0, 0, 0);
         ^~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:232:20: error: 'TRIANGLE_FAN' was not declared in this scope
         beginShape(TRIANGLE_FAN);
                    ^~~~~~~~~~~~
/tmp/.arduinoIDE-unsaved202362-9670-1dhdxqt.lzxw/MPU6050_DMP6/MPUTeapot.pde:235:9: error: 'vertex' was not declared in this scope
         vertex(0, tall, 0);
         ^~~~~~

exit status 1

Compilation error: variable or field 'serialEvent' declared void

What could be wrong? Do I need to install something else also for this code to work?

I am using Arduino IDE 2.1.0 on Ubuntu Linux 20.0.4 along with Arduino Uno R3.

Thanks for any help.

What's so interesting to you about this "Electronic Cats" library? Why not just use the Adafruit library?

1 Like

Ha ha. Very valid question with an advice.

In addition to curiosity and an effort to learn, I would also like to compare the results from both the libraries.

This code is not Arduino code. It's Processing code. It runs on your PC, not the arduino.

2 Likes

Thanks for your help which is much appreciated. So, I do not compile this code using the Arduino IDE?

I will be thankful for any further help or pointers to compile and run this Processing sketch.

Many thanks.

I've moved this topic to a forum section where hopefully someone expert in Processing code can help. (I've never used it myself.)

Processing allows you to design graphics, animations and user interfaces running on a PC. The sketch (Processing also calls it a sketch which is not surprising) that you showed is for Processing; it communicates with a device (Arduino) connected to your PC.

If you extract the MPU library, you will find, as an example

MPU6050_DMP6
+-- Processing
|   +-- MPUTeapot
|        +-- MPUTeapot.pde
+-- MPU6050_DMP6.ino

The Arduino sketch is the MPU6050_DMP6.ino; MPUTeapot is the accompanying processing sketch (pde stands for Processing Development Environment)

If you want to compare this library with the Adafruit one, I think that you must use the MPU6050_raw example.

If you want to continue with Processing, you must first install Processing (see Download Processing / Processing.org). The structure of a Processing sketchbook is very similar (if not the same) as the structure of the Arduino sketchbook; again, not surprising).

For Windows (I can see that you don't use that but it is what I use so the only thing that I can show)

Arduino
+-- libraries
+-- sketch 1
+-- sketch 2
Processing
+-- libraries
+-- sketch 1
+-- sketch 2

To get the Processing sketch that you provided to compile, you will need to unzip the toxiclibs-complete-0021.zip to a convenient location (you should remove it from the Arduino libraries directory). Next you need to copy (from the extracted toxiclibs-complete-0021.zip) the toxiclibs_p5 directory and the toxiclibscore directory to the Processing libraries directory.

And that as how much I basically know about Processing; I've just started using it.

2 Likes

Thank you for your helpful reply. I will give Processing a try after I am done with my current project where I am primarily focusing only on MPU6050 and Arduino.

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