error: failed to run custom build command for `librocksdb-sys v5.18.3` Windows

Compiling librocksdb-sys v5.18.3
Compiling cennznet v0.9.25-beta (C:\Users\charingane\Desktop\cennznet-master)
error: failed to run custom build command for librocksdb-sys v5.18.3

Caused by:
process didn't exit successfully: C:\Users\charingane\Desktop\cennznet-master\target\debug\build\librocksdb-sys-b28aaa0ace6f4e98\build-script-build (exit code: 101)
--- stdout
cargo:rerun-if-changed=build.rs
cargo:rerun-if-changed=rocksdb/
cargo:rerun-if-changed=snappy/
cargo:rerun-if-changed=lz4/
cargo:rerun-if-changed=zstd/
cargo:rerun-if-changed=zlib/
cargo:rerun-if-changed=bzip2/

--- stderr
thread 'main' panicked at 'Unable to find libclang: "couldn't find any valid shared libraries matching: ['clang.dll', 'libclang.dll'], set the LIBCLANG_PATH environment variable to a path where one of these files can be found (invalid: [(C:\Program Files\LLVM\bin\libclang.dll: invalid DLL (64-bit))])"', src\libcore\result.rs:1165:5
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace.

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

Please how to fix.

Start with the librocksdb-sys v5.18.3 build script and the reported libclang.dll failure on Windows. Check the LLVM path named in the error and the LIBCLANG_PATH environment variable, then rerun cargo build. Done means the custom build command completes without the libclang panic.