Cache error

Question

Cache error

Alquraini, Nour 1

I have these two errors that I can't solve. I looked for a solutions online but nothing worked. I have using System.Linq in my controller file but the errors are not gone. Can anyone please help me. I don't have much time to finish the project. Thank you for your help

Anurag Sharma 17,636 Reputation points

2020-12-14T04:34:10.82+00:00
Hi @Alquraini, Nour , welcome to Microsoft Q&A forum.

From the very first look of the issue, this seems to be related to mismatch between .NET framework. Can you try similar to what is mentioned in below articles once by changing the framework once and check if these problems exist:

https://stackoverflow.com/questions/37694861/the-type-or-namespace-name-linq-does-not-exist-in-the-namespace-system/39765911

https://stackoverflow.com/questions/31761424/cannot-define-a-class-or-member-that-utilizes-dynamic-because-the-compiler-req

After making the changes, please close the VS and start again.

If these articles don't help, could you please pass on the .NET framework version you are using. Also, have you migrated this project from one framework to another by any chance?