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Q&A DllExportAppDomainIsolatedTask task failed, requested value Version48 not found

I have a .NET Framework project in Visual Studio. While trying to build it, I get the following error message: Error The "DllExportAppDomainIsolatedTask" task failed unexpectedly. System.Argume...

1 answer  ·  posted 22h ago by FractionalRadix‭  ·  edited 22h ago by FractionalRadix‭

Question .net
#2: Post edited by user avatar FractionalRadix‭ · 2025-04-18T18:37:59Z (about 22 hours ago)
  • DllExportAppDomainIsolatedTask" task failed, requested value Version48 not found
  • DllExportAppDomainIsolatedTask task failed, requested value Version48 not found
#1: Initial revision by user avatar FractionalRadix‭ · 2025-04-18T18:32:51Z (about 22 hours ago)
DllExportAppDomainIsolatedTask" task failed, requested value Version48 not found
I have a .NET Framework project in Visual Studio. While trying to build it, I get the following error message:

> Error
The "DllExportAppDomainIsolatedTask" task failed unexpectedly. System.ArgumentException: Requested value 'Version48' was not found.

As I understand it, the 48 refers to .NET Framework version 4.8.  
I have installed this version of the .NET Framework on the computer, but the error remains.

How can I fix this?