rpcs3 cmake error

[ZeCoxao]

cmake CMakeLists.txt
-- No build type selected, default to Release
CMake Error at asmjit/CMakeLists.txt:14 (add_subdirectory):
add_subdirectory given source "asmjit" which is not an existing directory.


CMake Error at asmjit/CMakeLists.txt:15 (add_subdirectory):
add_subdirectory given source "rpcs3" which is not an existing directory.


-- cotire 1.6.1 loaded.
-- Initializing RPCS3_SRC_DIR=/root/Downloads/rpcs3-master/rpcs3
CMake Error at rpcs3/CMakeLists.txt:76 (find_package):
Could not find a package configuration file provided by "LLVM" with any of
the following names:

LLVMConfig.cmake
llvm-config.cmake

Add the installation prefix of "LLVM" to CMAKE_PREFIX_PATH or set
"LLVM_DIR" to a directory containing one of the above files. If "LLVM"
provides a separate development package or SDK, be sure it has been
installed.


-- Configuring incomplete, errors occurred!

I have no idea how to solve it, I have spent all day researching before posting.

git submodule update --init