Error when opening different menus

[hkeric.wci (Haso Keric)]

I would say reinstall .NET Framework, if you are certain that System.Attribute isnt an issue in your customization. I had some weird issues at one point and a .NET Reinstall helped, I couldnt explain it because I already had .NET 4.7.2 and then removing it and reinstalling it solved it.

EDIT:
I had to Uninstall and Install, Repair didn’t fix it.

Try that.

Kernelbase.dll Launching 10.2 client on Win 7

I just had the same issue after March 2019 Windows Rollup: Perhaps: KB4087364 Epicor 10.1 and 10.2 affected on Windows 7 (Only me so far). Resolved By: Uninstall (NOT Repair) .NET Framework 4.7.2 Install .NET Framework 4.7.2 I also tried the Repair Utility, without luck. So a complete Removal and Install did the trick. For Reference Error: Application: epicor.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.Ac…