If your ETS does not start, then it could be that some system libraries are conflicting.
How to identify?
The following error message is shown.
How to solve?
- Look for a file named 'System.Reactive.dll' in one of the subfolders of the directory 'C:\Windows\Microsoft.NET\assembly'.
- If you find it, deleted it (after you have copied first to a different location first, e.g. C:\Temp)
- Then, start ETS again.