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  1. Arduino Help Center
  2. Software and Downloads
  3. Compilation

Compilation

General troubleshooting advice for compilation issues

  • Error: ar.exe: unable to rename 'core'
  • Error: exit status 1
  • Error "undeclared function" or "undeclared type"
  • Error: Java.lang.StackOverflowError
  • Error: ar.exe: unable to rename 'core\core.a'
  • Windows Device Manager shows a 'warning sign' under my device
  • Windows: avr-g++: error: device-specs/specs-atmega328p: No such file or directory
  • Tips to reduce the size of a sketch
  • Error: Symbol not found environ

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