Errors after update

Development Tools IDE 1.x
1

Hi, I just updated my IDE to 1.6.12 and have now got a whole lot of errors while trying to compile.

I have no idea what to try.

I am running on OSX 10.7.5

Note, i had to truncate the error message I posted due to a 9000 character limit on the post.

Any ideas?

Cheers.

Phil

Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: dlopen(/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): Symbol not found: _environ
  Referenced from: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  Expected in: /usr/lib/libSystem.B.dylib


/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: dlopen(/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): Symbol not found: _environ
  Referenced from: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  Expected in: /usr/lib/libSystem.B.dylib


/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: core/WInterrupts.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: dlopen(/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): Symbol not found: _environ
  Referenced from: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  Expected in: /usr/lib/libSystem.B.dylib


/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: WInterrupts.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: core/hooks.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: dlopen(/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): Symbol not found: _environ
  Referenced from: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  Expected in: /usr/lib/libSystem.B.dylib


/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: WInterrupts.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: hooks.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: core/wiring.c.o: plugin needed to handle lto object
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar: dlopen(/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so, 2): Symbol not found: _environ
  Referenced from: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../libexec/gcc/avr/4.9.2/liblto_plugin.so
  Expected in: /usr/lib/libSystem.B.dylib
Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/../lib/gcc/avr/4.9.2/../../../../avr/bin/ar

collect2: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino/Genuino Uno.
2

Phil, did you get an answer to this issue?

3

I found an answer:

pert:
You should be able to fix this by:

  • Tools > Board > Boards Manager > Arduino AVR Boards(click on it) > select 1.6.11 from the "select version" drop down menu > Install
  • Wait for the installation to complete and then click the "Close" button

As to the actual cause of the issue I don't know. The LTO stuff that's causing the issue was added in Arduino AVR Boards 1.6.12, this is why you need to go back to Arduino AVR Boards 1.6.11 to fix it.