Getting a CMake Error: Cannot specify link libraries for target which is not built by the project

Question

I am implementing CMake in my code but I\'m getting the error

\"Cannot specify link libraries for target \"Qt5::Widgets\" which is not built by the p

Answer 1

Also, do not confuse target name with the project name:

• a command project specifies a project name, but
• a target is the one created with add_executable, add_library or add_custom_target.

The error message is about the target.