CodePudding user response:

My new project will be out of the question, where I put the red clip in copy, will not be submitted to the red, and then rebuilding,

CodePudding user response:

May be created in your project two mainwindow class, is not in a QT project has two mainwindow class

CodePudding user response:

Name, the name of the class and references to corresponding UI name, reference UI=UI + class name is lower case, the rest of the all the local name of the class, and take a look at the form of weidge name and the name of the class