Quote from: vv181 on September 12, 2022, 09:56:30 AM

That installation should have automatically updated your PATH environment, have you tried to restart your console?

Yes, it's updated:

Code:

bitcoin@raspibolt:~/lightning $ cargo --version
cargo 1.63.0 (fd9c4297c 2022-07-01)

But it now fails to run custom command with this "prost-build v0.8.0":

Code:

make: *** [plugins/Makefile:191: target/debug/examples/cln-plugin-startup] Error 101
make: *** Waiting for unfinished jobs....
error: failed to run custom build command for `prost-build v0.8.0`

Caused by:
process didn't exit successfully: `/home/bitcoin/lightning/target/debug/build/prost-build-02336ebf13cd8614/build-script-build` (exit status: 101)
--- stderr
thread 'main' panicked at 'Failed to find the protoc binary. The PROTOC environment variable is not set, there is no bundled protoc for this platform, and protoc is not in the PATH', /home/bitcoin/.cargo/registry/src/github.com-1285ae84e5963aae/prost-build-0.8.0/build.rs:105:10
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
make: *** [plugins/Makefile:194: target/debug/cln-grpc] Error 101
rm external/arm-linux-gnueabihf/libwally-core-build/src/secp256k1/libsecp256k1.la

It must have to do with cargo, as it searches the .cargo path. The above is prompt on make.