MPU6050

Hello
I'm using a MPU6000 acc/gyro in my project (I am making a "smart racket" in my high school project with a MPU IMU click and its shield), but I can't upload the code to the Arduino.
I used this tutorial : http://diyhacking.com/arduino-mpu-6050-imu-sensor-tutorial/
I am getting this error message everytime but since I don't know much about code I don't understand what it means.

MPU6050_DMP6.ino:46:20: error: I2Cdev.h: No such file or directory
MPU6050_DMP6.ino:48:40: error: MPU6050_6Axis_MotionApps20.h: No such file or directory
MPU6050_DMP6:61: error: 'MPU6050' does not name a type
MPU6050_DMP6:133: error: 'Quaternion' does not name a type
MPU6050_DMP6:134: error: 'VectorInt16' does not name a type
MPU6050_DMP6:135: error: 'VectorInt16' does not name a type
MPU6050_DMP6:136: error: 'VectorInt16' does not name a type
MPU6050_DMP6:137: error: 'VectorFloat' does not name a type
MPU6050_DMP6.ino: In function 'void setup()':
MPU6050_DMP6:184: error: 'mpu' was not declared in this scope
MPU6050_DMP6.ino: In function 'void loop()':
MPU6050_DMP6:263: error: 'mpu' was not declared in this scope
MPU6050_DMP6:313: error: 'q' was not declared in this scope
MPU6050_DMP6:314: error: 'gravity' was not declared in this scope

Is anyone able to help me please ?

error: I2Cdev.h: No such file or directory

Error messages don't get much clearer or more explicit than that.

Start here

We took the code from:
https://github.com/jrowberg/i2cdevlib/blob/master/Arduino/MPU6050/Examples/MPU6050_DMP6/MPU6050_DMP6.ino

Here are my errors:

MPU6050_DMP6.ino:46:20: error: I2Cdev.h: No such file or directory
MPU6050_DMP6.ino:48:40: error: MPU6050_6Axis_MotionApps20.h: No such file or directory
MPU6050_DMP6:61: error: 'MPU6050' does not name a type
MPU6050_DMP6:133: error: 'Quaternion' does not name a type
MPU6050_DMP6:134: error: 'VectorInt16' does not name a type
MPU6050_DMP6:135: error: 'VectorInt16' does not name a type
MPU6050_DMP6:136: error: 'VectorInt16' does not name a type
MPU6050_DMP6:137: error: 'VectorFloat' does not name a type
MPU6050_DMP6.ino: In function 'void setup()':
MPU6050_DMP6:184: error: 'mpu' was not declared in this scope
MPU6050_DMP6.ino: In function 'void loop()':
MPU6050_DMP6:263: error: 'mpu' was not declared in this scope
MPU6050_DMP6:313: error: 'q' was not declared in this scope
MPU6050_DMP6:314: error: 'gravity' was not declared in this scope

Yaya94:
We took the code from:

It's important to know where you got it from, but it's just as important to know where you put it.

Thanks for answering,

I took these files here :

http://diyhacking.com/projects/MPU6050.zip

And I pasted it in : C:\Program Files\Arduino\libraries