I am using version Telerik.Web.UI 2016.2.607.45
I have downloaded the patch SecurityPatch_2016_2_607.zip from https://www.telerik.com/account/product-download?product=RCAJAX
When I replaced the references form the old Telerik.Web.UI to the newly patched dll I get the following error compiling the project.
'Could not load file or assembly 'Telerik.Web.UI, Version=2016.1.225.45, Culture=neutral, PublicKeyToken=' xxxx' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515) 'D:\......LC'
This appears to be in my license Telerik.Web.UI.RadGrid, Telerik.Web.UI, Version=2016.1.225.45. I did not renew my subscription in 2016 but purchased the license 2015
6 Answers, 1 is accepted
Hello,
The error indicates that there is a wrong assembly reference. I can suggest you examine the following two articles that treat such problems:
- caused by LC.exe: http://docs.telerik.com/devtools/aspnet-ajax/licensing/license-file. If this is causing the issue, deleting the license.licx file should resolve it.
- caused by project references: http://docs.telerik.com/devtools/aspnet-ajax/installation/upgrading-instructions/upgrading-a-trial-to-a-developer-license-or-to-a-newer-version#could-not-load-file-or-assembly-telerikwebui-after-upgrade. In such a case you will need to make sure your references point to the same version.
Regards,
Progress Telerik

I removed the licx file as you suggested and it fixed the compile issue.
Thank you

Hello, I am running into another issue applying the patch Telerik.Web.UI version 2016.3.1027.45. It seems to be incompatible with Telerik.Web.Design v 2016.1.225.45 and Telerik.Web.UI.Skins version 2016.1.225.45. Is there a workaround for this?
Hello Paul,
This is expected. All Telerik.Web.* assemblies must be of the same version in order to work together.
So, if your project uses version 2016.3.1027.45, all assemblies and the patch must be of that version. If your project is using 2016.1.225.45, you should download that patch and not the 2016.3.1027 patch.
Regards,
Progress Telerik

We have a .net web site (no project file and thus no references) where we had Telerik.web.ui.dll, Telerik.Web.UI.Skins.dll, and Telerik.Web.UI.xml in the bin folder. The 2015.3.1111.45 patch only contained the Telerik.Web.UI.dll . When we paste that DLL in the bin we get a skins error. When we paste in the old version it works. As far as I can tell there is no patched source for the skins.dll. Here's the error we are getting: Telerik.Web.UI.RadEditor with ID='txtContent' was unable to find an embedded skin with the name 'Windows7'. Please, make sure that the skin name is spelled correctly and that you have added a reference to the Telerik.Web.UI.Skins.dll assembly in your project.
Is there a patched version of the skins.dll? How do we get around this?
Hi John,
Code changes exist only in Telerik.Web.UI.dll, so the Telerik.Web.UI.Skins.dll does not require a patch or updates.
The only advice I can offer right now is that you go to your telerik.com account and download the 2015.3.1111 security patch again. There was a similar issue with it around its initial release and perhaps the file you have at your disposal is this slightly wrong initial build.
Regards,
Progress Telerik