Compile issue

[PD5DJ]

When selecting Frsky_X I get the following compile error:

exit status 1
conflicting return type specified for 'virtual void CustomFrSkySportSensorGps::send(FrSkySportSingleWireSerial&, uint8_t, uint32_t)'

Any idea?

[SamuelBrucksch]

This project is pretty old, maybe a version of Arduino or any library used has a newer version that causes conflicts. Maybe try an Arduino Version from 6 years ago.