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qtdesignercomponents4.dll, File description: Graphical user interface designer.

Errors related to qtdesignercomponents4.dll can arise for a few different different reasons. For instance, a faulty application, qtdesignercomponents4.dll has been deleted or misplaced, corrupted by malicious software present on your PC or a damaged Windows registry.

The most commonly occurring error messages are:

  • The program can't start because qtdesignercomponents4.dll is missing from your computer. Try reinstalling the program to fix this problem.
  • There was a problem starting qtdesignercomponents4.dll. The specified module could not be found.
  • Error loading qtdesignercomponents4.dll. The specified module could not be found.
  • The code execution cannot proceed because qtdesignercomponents4.dll was not found. Reinstalling the program may fix this problem.
  • qtdesignercomponents4.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vender for support.

In the vast majority of cases, the solution is to properly reinstall qtdesignercomponents4.dll on your PC, to the Windows system folder. Alternatively, some programs, notably PC games, require that the DLL file is placed in the game/application installation folder.

For detailed installation instructions, see our FAQ.




File size





1.84 MB

U.S. English

Digia Plc and/or its subsidiary(-ies)

Graphical user interface designer.

MD5: a8d5cf20b773e4f6882f8f697633a722
SHA-1: 6d2206991bbbc11f4345b3ab8e7d6369cfdeff2e
Zip file size: 0.71 MB

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