Void Value no Ignored as it ought to be

Projects Programming
1

I keep getting the "Void Value no Ignored as it ought to be" when trying to get raw accelerometer values to print on the lcd screen for only the X direction. Please help. I am a confuzzled student.

#include <Wire.h>
#include <Zumo32U4.h>

LSM303 compass;
L3G gyro;

char report[120];

void setup()
{
  Wire.begin();

  if (!compass.init())
  {
     //Failed to detect the compass.
    ledRed(1);
    while(1)
    {
      Serial.println(F("Failed to detect the compass."));
      delay(100);
    }
  }

  compass.enableDefault();

  if (!gyro.init())
  {
    // Failed to detect the gyro.
    ledRed(1);
    while(1)
    {
      Serial.println(F("Failed to detect gyro."));
      delay(100);
    }
  }

  gyro.enableDefault();
}

int16_t compassCount = 0;

void loop()
{
  compassCount = compass.read();
  //gyroCount = gyro.read();

  snprintf_P(report, sizeof(report),
    //PSTR("A: %6d"),
    compass.a.x, compass.a.y, compass.a.z,
    compass.m.x, compass.m.y, compass.m.z,
    gyro.g.x, gyro.g.y, gyro.g.z);
    lcd.clear()
    lcd.print(compassCount)
  //Serial.println(report);

  delay(100);
}
2

The error message is telling you that you are trying to obtain a value from a function that does not return a value.

Since the program posted won't run as it is, it doesn't help.

3

According to the documentation, read() does not return anything so the line "compassCount = compass.read();" is incorrect.