Sometime when you open “Security” tab for one project , which is targetting .NET 3.5 , in VS 2008, you see below error.
Visual Studio was unable to determine the Code Access Security (CAS) permissions that are applicable to your project. The most likely cause is that your project references a strongly-named assembly that defines custom permissions, but that is not properly installed in the global assembly cache (GAC). To correct this, try the following…..
The reason it happened for me is because by mistake somebody updates the toolsversion in .csproj file to “4.0”, i update it back to “3.5” and issue was resolved. So look at project and all references projects for toolsversion , and update the project which is causing issue. problem should be gone .. ![]()
happy Coding ![]()
引文来源 de-access-security-cas-permissions/” target=”_blank”>Visual Studio was unable to determine the Code Access Security (CAS) permissions « Virtual tech