This issue also exists in WRL7.0.0.x RCPL. error: cannot open .git/FETCH_HEAD: Permission denied ERROR: /workspace/wb4-debug/layers/wr-sdk-toolchain already exists but is a directory. If you have local changes, save them somewhere else. Then, remove /workspace/wb4-debug/layers/wr-sdk-toolchain and re-run configure.
./wrlinux/configure --enable-board=cav-octeon3 --enable-multilib=lib64 --enable-parallel-pkgbuilds=12 --enable-jobs=12 --enable-reconfig --enable-rootfs=glibc-small+debug --enable-kernel=standard --enable-build=profiling --enable-sdkmachine=auto,x86_64-mingw32 --enable-win-sdk=yes --with-rcpl-version=auto make fs; make reconfig