- 1 year ago
Cmake: pkg_check_modules error: Package '...', required by 'virtual:world', not found
The error message you're encountering indicates that CMake's pkg_check_modules
function was unable to find a required package for your project. This error commonly occurs when a dependency package is missing or not properly installed on your system.
To resolve this issue, you can follow these steps:
Verify that the required package is installed: Make sure the package you are trying to find using
pkg_check_modules
is installed on your system. You can check the package manager for your operating system (e.g.,apt
for Ubuntu,yum
for CentOS,brew
for macOS) to install the necessary package. Ensure you install both the runtime and development packages, as the development package typically contains the necessary header files and libraries for building projects.Specify the correct package name: Double-check that you are providing the correct package name in your CMakeLists.txt file or CMake script. The package name is case-sensitive, so ensure it matches the exact name of the package installed on your system.
Specify the package path manually: If the package is installed in a non-standard location, you may need to specify the package path manually. You can set the appropriate variables like
PKG_CONFIG_PATH
orCMAKE_PREFIX_PATH
to point to the directory containing the package's.pc
file (usually found in thelib/pkgconfig
directory).For example, you can use the following command in your CMake script to manually specify the package path:
bashset(ENV{PKG_CONFIG_PATH} "/path/to/pkgconfig:$ENV{PKG_CONFIG_PATH}")
Check environment variables: Ensure that the necessary environment variables, such as
PKG_CONFIG_PATH
, are set correctly and include the directory where the.pc
file for the required package is located.Verify the package name in the CMake script: Ensure that you are using the correct package name when calling
pkg_check_modules
in your CMake script. If you are using a virtual package name like 'virtual:world', make sure the actual package providing the virtual package is installed on your system.
By following these steps, you should be able to resolve the "Package '...', required by 'virtual:world', not found" error and successfully build your CMake project.