XrmToolBox Updating connections crashes when restarting XTB

I said Yes to update the XTB connections to 1.2025.9.x When it says that we need to restart XTB, I get this error, and every time I try to start XTB!

Error Time: 2025-10-13 08:22:14.161
System.TypeLoadException
Method 'get_UseFilterForAdditionalConnection' in type 'XrmToolBox.Options' from assembly 'XrmToolBox, Version=1.2025.7.71, Culture=neutral, PublicKeyToken=null' does not have an implementation.
XrmToolBox
at XrmToolBox.AppCode.WebProxyHelper.ApplyProxy()
   at XrmToolBox.Program.Main(String[] args)

Oct 13 '25 06:10 rappen

There should have been an XrmToolBox update too... that does not have this issue 😭 I guess you just need to update manually your XrmToolBox app

Oct 13 '25 06:10 MscrmTools

I unlisted the new package for now to avoid the issue for other users. So only the update of XrmToolBox should be proposed

Oct 13 '25 06:10 MscrmTools

Should we update XrmToolBox first, and the McTools.Xrm.Connection.dll? Or is this a classic problem in Power Platform: MissingDepencies....? 😅

Oct 13 '25 06:10 rappen

If you update XrmToolBox, you get new connection controls too but the "missing" method should be included. I don't know why it fails as I tested the combination of XrmToolBox with this new version of connection controls for a week before releasing it...

Oct 13 '25 06:10 MscrmTools

I just wanted to know: when you opened XrmToolBox and it proposed you to update connection controls, did you already see the form that shows an update for XrmToolBox main application?

Oct 13 '25 06:10 MscrmTools

Still happened to me in the last 15 minutes.

Oct 13 '25 07:10 Edwin-VC

The package is unlisted an hour ago, I don't see how XrmToolBox could propose you an update for connection controls...

Oct 13 '25 07:10 MscrmTools

I am still having this problem, can you suggest me how I could fix it? Been smashing the XrmToolBox.AutoUpdater.exe for 20 mins

Oct 13 '25 07:10 mattsmallcalves

Just download manually from www.xrmtoolbox.com et replace your XrmToolBox folder content with the zip downloaded

Oct 13 '25 07:10 MscrmTools

I just wanted to know: when you opened XrmToolBox and it proposed you to update connection controls, did you already see the form that shows an update for XrmToolBox main application?

Sorry, I wasn't looking closely enough... just saw that the connection should be updated, didn't check the whole form.

Oct 13 '25 08:10 rappen

Hi, I have the same problem... "Just download manually from www.xrmtoolbox.com et replace your XrmToolBox folder content with the zip downloaded" worked for me.

Oct 13 '25 08:10 sybaris

ah crap! The code that retrieve latest version of connection controls does not exclude unlisted versions... I will add this but all users will get this issue :/

Oct 13 '25 08:10 MscrmTools

Hi, I have the same problem... "Just download manually from www.xrmtoolbox.com et replace your XrmToolBox folder content with the zip downloaded" worked for me.

Yeah, me too.

Oct 13 '25 08:10 mattsmallcalves

This is a major failure but I don't have any control over it unfortunately... I can just improve code so that it does hot happen next time I change something in connection controls...

Oct 13 '25 08:10 MscrmTools

I just wanted to know: when you opened XrmToolBox and it proposed you to update connection controls, did you already see the form that shows an update for XrmToolBox main application?

yes, both updates were visible and I updated the wrong part first, the workaround in here helped, though

Oct 14 '25 06:10 dkasp