Error HRESULT E_FAIL when pasting references in Visual Studio
问题 I know this isn't a programming question but it is a programming tool question. In Visual Studio 2008 Team Edition (version 9.0 with .NET 3.5 SP1) when I copy and paste references from one csproj to another (with the context menu in the 'Solution Explorer' view) I get the following error: Error HRESULT E_FAIL has been returned from a call to a COM component This has only just started happening on my machine. I can only find this article about it, and it contains no solution. Any ideas? 回答1: