Missing text for QMessageBox

Steps to reproduce:

• Create a new Non-Qt project - no matter if C or C++ (CMake build)
• step forward until the CMake wizard comes up and asks for Running CMake (with choosen generator)
• do NOT push the 'Run CMake' button - instead push 'Cancel'

Current behaviour:

• Creator brings up the message box for the failed file generation without a message (see attached pic)

Expected behaviour:

• Creator should not bring up this message (there was no file generation at all) OR
• Creator should bring up another MessageBox with correct text(s) (including windowTitle)