Compiling, linux debian, Arduino IDE 2.1.1
....
Assembler messages:
Fatal error: invalid -march= option: `rv32imfc'
exit status 1
Error compiling for board PINE64 PineCone.
solved
chmod +x ~/.arduino15/packages/bouffalo/tools/riscv64-unknown-elf/0.0.1/riscv64-unknown-elf/bin/*