After installing the Microsoft.Bcl.Async package from NuGet, I get the following error, which stops my controls from displaying in the VS design view.
Error Could not load file or assembly 'System.Core, Version=126.96.36.199, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes' or one of its dependencies. The system cannot find the file specified.
The dll that the components that cause the problem are in, references the System.Core dll as follows:
Other reports online of the same problem: