Can you add
check_skip_packages = yes
in the platformio.ini
and retry the same command. It looks like its double-defining all compiler-specific macros for the AVR target. Use pastebin.com if the output gets too large.
Can you add
check_skip_packages = yes
in the platformio.ini
and retry the same command. It looks like its double-defining all compiler-specific macros for the AVR target. Use pastebin.com if the output gets too large.