I can not create a new project in qt in c ++ language
The project I want is Plain C ++ application
says it is not configured, what should I configure?
When installing Qt you have to see which compiler you are going to install in this case you can use MinGW if it is Windows and in Linux GCC .
It seems that you only installed the QtCreator only the Qt environment, not the other tools in the environment.
When you install Qt the following window will appear in the section of Tools you add compiler that will use either 32 bits or 64 bits and the version you will occupy. By default, you install the 32-bit version when you are installing the Qt work environment, not just the QtCreator.
This is the installation guide in Spanish that you use to install it, I hope I can help you.
Greetings.