Qt Creator needs a compiler set up to build. Configure a compiler in the kit options

Question

I Have Installed Qt Creator5 with latest binaries. but when i am running any program it is giving me this error.

:-1: error: Qt Creator needs a compiler set

Answer 1

* for windows users only *

Before continuing to next steps make sure u have downloaded latest version of Qt.

1. Download and install minGW-64-bit from link: https://sourceforge.net/projects/mingw-w64/files/latest/download
2. Remember The directory to which you install minGW.
3. Open Qt creator and go to tools -> options -> Build and Run

4. In Compilers tab Select add -> MinGW ->
   Name: MinGW
   path: Browse for mingw-w64.bat (you will find this file in the directory in which you have installed MinGW).
   ABI: x86 Windows msvc2015 pe 64bit
   
   Don't forget to apply your edits.

5. Go to Kit -> add
   Name: GCC
   Device Type: Desktop
   Device: Local PC (Default for desktop)
   Compiler: minGW
   Qt Version: select newest version
   
   Apply changes and restart qt

While creating new project make sure you use GCC as kit

If it still doesn't works Click computer icon on bottom left above play button -> GCC -> Build

OR

Go to projects (It is in the menu on left hand side) -> Build Steps -> make -> Override minGw31-make.exe -> browse to path in which you have installed minGW/bin\mingw32-make.exe
Do the same for clean steps too

If u Still get any error after these steps try setting Environment Variables

1. Press Win+Q
2. Type " Environment variables "
3. click on " Edit the system environment variables "
4. System Properties -> Advance -> Environment Variables
5. Click on path (NOTE : Use These steps very carefully and do not mess with other options)
6. Click edit
7. press right arrow to go to end of text
8. type a semi-colon (if it isn't at the end of it because all the system paths are distinguished by a semi-colon)
9. paste path "MinGW_installation_directory\bin" (In my case it was "G:\Qt\Tools\mingw32\bin"). Make sure you copy and paste CORRECT path
10. Click OK and apply the changes.

That should do it !!!