Client object model get item by id error- “Item does not exist. It may have been deleted by another user”

Question

I am getting error while I try execute get list item by id

 ClientContext clientContext = TokenHelper.GetClientContextWithAccessToken(sharepointUrl.ToString(), a         


        

Answer 1

The problem was in the permission in the manifest file, and while you are deploying the app, SharePoint asks you about "trust" then you have to choose the list which you want to operate with.