******************************************************************************** conan install glew/2.2.0@ --profile=/home/conan/w/BuildSingleReference/4352/6af7c49e-6814-4b78-8056-032cd52e23e2/profile.txt --build=glew ******************************************************************************** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Release compiler=clang compiler.libcxx=libstdc++ compiler.version=11 os=Linux os_build=Linux [options] glew:shared=False [build_requires] [env] glew/2.2.0: Forced build from source Installing package: glew/2.2.0 Requirements glew/2.2.0 from local cache - Cache glu/system from 'conan-center' - Cache opengl/system from 'conan-center' - Cache Packages glew/2.2.0:4894fe5cec4d89f31ef615d75a660f7360b40ba6 - Build glu/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache opengl/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache Installing (downloading, building) binaries... opengl/system: Already installed! ERROR: opengl/system: Error in package_info() method, line 80 self._fill_cppinfo_from_pkgconfig('gl') while calling '_fill_cppinfo_from_pkgconfig', line 20 if not pkg_config.provides: ConanException: pkg-config command ['pkg-config', '--print-provides', 'gl', '--print-errors'] failed with error: Command 'pkg-config --print-provides gl --print-errors' returned non-zero exit status 127. /bin/sh: 1: pkg-config: not found