error: linking with `link.exe` failed: exit code: 1120

: error LNK2019: unresolved external symbol _defmt_write...
: error LNK2019: unresolved external symbol _defmt_timestamp...
: error LNK2019: unresolved external symbol _defmt_acquire...
: error LNK2019: unresolved external symbol _defmt_flush...
: error LNK2019: unresolved external symbol _defmt_release...

: fatal error LNK1120: 5 unresolved externals