Codeblocks is installed but cannot be compiled.

Generally, you will install codeblocks with minggw. If you do not install this version, the codeblocks installation package will not contain a compiler, unless you have other compilers, such as VC compilers, or other codeblocks is an open-source C ++ IDE, which means that it supports multiple compilers. Therefore, it indicates that you can configure compiler options. it means that compilation cannot be completed. This is the disadvantage of multiple choices,

 

On the main menu, click Settings> compiler and debugger. If you use the minggw compiler, the compiler is GNU gcc compiler. In the label bar on the right of global compiler settings, find the toolchain executables, configure the installation directory of your compiler here. If you want to save trouble, click auto-detect, haha, can you compile it again?