#195 KDiff3-32bit-Setup_0.9.98-3 crash at startup

[Arkady Shapkin]

"kdiff3.exe - System Error
the program can't start because Qt5Core.dll is missing from your computer. Try reinstalling the program to fix this problem."

64-bit installer works fine

Please fix ASAP

https://github.com/gitextensions/gitextensions/issues/2421

[gdv22]

I wonder if this is somehow related to or caused by installation/use of Git Extensions???

I don't use Git Extensions, so I don't know how to check this, but FWIW, KDiff3-32bit-Setup_0.9.98-3.exe installed and runs fine on my 32-bit Win7 system, with Qt5Core.dll installed in C:\Program Files\KDiff3\bin.

[Arkady Shapkin]

I don't think so. GitExtensions only run 32bit KDiff installer, nothing special. I can reproduce this installing KDiff directly.

How KDiff load qtcore5.dll from subfolder bin? LoadLibrary?

[Arkady Shapkin]

Somehow it's works on my work computer.

[Joachim Eibl]

The manifest file tells Windows where to look for the dlls.
But I am aware that there are problems on some machines.
First: Please reboot and test again. Sometimes the problem disappears.
Second: If the problem persists after reboot: The bin-folder contains several dlls. Copy them directly next to the KDiff3.exe-file and remove the kdiff3.exe.manifest. That should really fix it.
I have tested on a 32-bit-Vista machine without problems. So it is hard for me to debug. What Windows-version are you using?
I previously thought the manifests might be useful, but now I think that the manifest system is too buggy.

[Arkady Shapkin]

Windows 8.1 64-bit. Maybe problem only appear on WIndows 8.1. On my work machine (Windows 7 64-bit all works fine).

[Arkady Shapkin]

If the problem persists after reboot: The bin-folder contains several dlls. Copy them directly next to the KDiff3.exe-file and remove the kdiff3.exe.manifest. That should really fix it.

Now it's show "The application failed to start because it could not find or load the Qt platform plugin "windows"."

[Joachim Eibl]

Please check:

• There should be the qt.conf file next to the kdiff3.exe containing the lines "[Paths]" and "Prefix = bin".
• The "bin" folder next to the kdiff3.exe should still contain the plugins folder with the file bin/plugins/platforms/qwindows.dll

[Arkady Shapkin]

Yes, removing Prefix helps

[Arkady Shapkin]

Also, it's works if I copy KDiff3 folder (unmodified) from Program Files to my folder.
Problem only with dll's from bin.manifest, if I copy that dll's to KDiff3 folder it's works.