Intellisense suggestion fails to add Reference to project [duplicate]

Reproduce by:

  1. Create new WPF (.Net framework 4.8) project.
  2. Type in MemoryCache and then Ctrl+.
  3. Click on using System.Runtime.Caching; (from System.Runtime.Caching)
  4. Stare at the following dialog until bored:

enter image description here

Searching for the question on a search engine and on Stack Overflow have returned nothing. So how do I fix this?



from Recent Questions - Stack Overflow https://ift.tt/3oouxqx
https://ift.tt/3ppWHCG

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