having problems compiling arduino code. was working a few minutes back but no mo

Linking everything together...

lto1: fatal error: bytecode stream in file '/tmp/416039492/build/../../core/core_arduino_avr_uno_0fd389f0184d5a21fcc443ff311da7f1.a' generated with LTO version 4.1 instead of the expected 6.0

compilation terminated.

lto-wrapper: fatal error: /home/builder/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino5/bin/avr-gcc returned 1 exit status

compilation terminated.

/home/builder/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino5/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: error: lto-wrapper failed

collect2: error: ld returned 1 exit status

exit status 1

HOW SHOULD I FIX IT???

If you are using the Arduino web editor, you may sometimes experience this kind of error. Just consider installing the regular IDE that you can download from the Arduino website.

According to the team it was fixed.
Thanks for your reports.

Bob.