I am using SparkIntervalTimer.h in Particle Dev and it complies fine but in the online version it creates an error when I am trying to flash. A big red box showed up with this message and a button “CREATE ISSUE” on Git:
This looks like an error in SparkIntervalTimer library. Would you like to create an issue on GitHub to let the author know?
SparkIntervalTimer/SparkIntervalTimer.h:121:30: error: ‘SysInterrupt_TIM2_Update’ was not declared in this scope
if (!attachSystemInterrupt(SysInterrupt_TIM2_Update, Wiring_TIM2_Interrupt_Handler_override)) ; //error
Any suggestions what I am doing wrong?