Bug 503695

Summary:	KDiff3 1.12.1 and 1.12.2 not working after a clean installation in Win 10 & 11
Product:	[Applications] kdiff3	Reporter:	石庭豐 <lapsap7+kde>
Component:	application	Assignee:	michael <reeves.87>
Status:	RESOLVED DUPLICATE
Severity:	grave	CC:	john.kizer
Priority:	NOR
Version First Reported In:	1.12.2
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Sending selected file to KDiff3 for comparison on context menu Dialog showing KDiff3 not starting/running

Description 石庭豐 2025-05-03 01:46:34 UTC

SUMMARY
KDiff3 1.12.1 and 1.12.2 are not working after a clean installation (ie not having old version previously installed).

STEPS TO REPRODUCE
1. Use a clean Windows 10 or 11 environment.  (Make sure C:\Program Files has no Kdiff3 sub-folder.)
2. Install version 1.12.1 using kdiff3-1.12.1-windows-x86_64.exe or 1.12.2 using kdiff3-1.12.2-windows-x86_64.exe
3. After installation, select any two files in File Explorer.
4. Open context menu on the selected files > KDiff3 > Compare (CF attached image kdiff3-issue-1-send-to-compare.jpg)

OBSERVED RESULT
A dialog showing "Could not start KDiff3. Please rerun KDiff3 installation"
(CF attached image kdiff3-issue-2-cannot-run.jpg)

EXPECTED RESULT
Comparison of selected files

SOFTWARE/OS VERSIONS
Windows: 10 and 11

ADDITIONAL INFORMATION
* I use a virtual machine running Windows 10 to rerun the steps.  So I'm 100% sure that my Windows is *clean*.
* Rerun installation has no effect.
* However, if an old version, eg 1.10.7 in my case, was previously installed, version 1.12.2 would work fine.

Comment 1 石庭豐 2025-05-03 01:47:35 UTC

Created attachment 180897 [details]
Sending selected file to KDiff3 for comparison on context menu

Comment 2 石庭豐 2025-05-03 01:49:07 UTC

Created attachment 180898 [details]
Dialog showing KDiff3 not starting/running

Comment 3 michael 2025-05-08 01:45:19 UTC

Consolidating two reports with same root cause

*** This bug has been marked as a duplicate of bug 503473 ***

Comment 4 michael 2025-05-08 01:48:04 UTC

Looks like automation pulled master instead.

Comment 5 michael 2025-05-08 13:31:20 UTC

Disregard that last message thank you Bugzilla for not allowing edits.

Comment 6 石庭豐 2025-05-09 11:23:48 UTC

(In reply to michael from comment #3)
> Consolidating two reports with same root cause
> 
> *** This bug has been marked as a duplicate of bug 503473 ***

Oh, indeed, "install just for me" has no such context menu bug.

Comment 7 石庭豐 2025-05-21 10:37:20 UTC

Just tested with kdiff3-1.12.3-windows-x86_64.exe and I confirmed that the bug is gone.
Thanks.