thread 'main' panicked at 'Unable to find libclang

[chengmou]

--- stderr
thread 'main' panicked at 'Unable to find libclang: "couldn't find any valid shared libraries matching: ['libclang.so', 'libclang-.so', 'libclang.so.', 'libclang-.so.'], set the LIBCLANG_PATH environment variable to a path where one of these files can be found (invalid: [])"', /root/.cargo/registry/src/github.com-1ecc6299db9ec823/bindgen-0.54.0/src/lib.rs:1959:13
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

warning: build failed, waiting for other jobs to finish...
error: build failed

• rm -f /tmp/tmp.DFwSnga90w
  make[1]: *** [Makefile:11：.install-filcrypto] 错误 101
  make[1]: 离开目录“/root/lotus/extern/filecoin-ffi”
  make: *** [Makefile:37：build/.filecoin-install] 错误 2

[hyunmoon]

https://github.com/filecoin-project/lotus/issues/3826

[jennijuju]

@chengmou let me know if you still have this issue after installing llvm and clang by running sudo apt-get install libclang-dev

[jennijuju]

This seems to be a setup issue, moving to discussion for now, please reopen a ticket if installing the library does not resolve the issue.