qt5cored.dll error while executing a qt application

[aaditya190]

Whenever I try to execute an application outside Qt, i.e through Build folder, it gives an error that qt3cored.dll not installed on your system. I downloaded the .dll file but I am unable to know how to install it. Can someone help me with this?

[ChrisW67]

It is part of Qt3 and should be installed when you installed Qt3. When you deploy the application all the relevant/used Qt3 DLLs should go with the application, typicaly in the same folder as the exe or on the system path. How Windows searches for DLLs is well documented and easily located with 5 seconds of Google-fu.

The DLL also appears to be debug version, and you should be aiming to deploy a release build of your application.

Edit: The title and the content of your post do not match. The title implies a Qt5 DLL and your post gives a Qt3 DLL. Either way, the solution is the same

[anda_skoa]

Edit: The title and the content of your post do not match. The title implies a Qt5 DLL and your post gives a Qt3 DLL. Either way, the solution is the same

Must be either Qt4 or Qt5, Qt3 wasn't yet split into modules libraries

Cheers,
_