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[SOLVED] Qt 5 Code Editor Example

  • I made a new project and copied and pasted the code present in this:

    However when I try to compile it says:

    mainwindow.obj:-1: error: LNK2019: unresolved external symbol "public: __thiscall CodeEditor::CodeEditor(class QWidget *)" (??0CodeEditor@@QAE@PAVQWidget@@@Z) referenced in function "public: __thiscall MainWindow::MainWindow(class QWidget *)" (??0MainWindow@@QAE@PAVQWidget@@@Z)

    The code should work but it doesn't :S

  • Do you have an implementation of CodeEditor::CodeEditor(QWidget *parent) in codeeditor.cpp?

    If you installed Qt using an installer from then you can find this example in Qt/Examples/Qt-5.3/widgets/widgets/codeeditor
    Try the project from that directory. Does it work ?

  • Fixed it, it must have just been a weird bug in that project file. Copying everything over and running it worked fine.

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