a schedule with parameters cannot have an activatable receive

You obtain this error if you try to have an active receive location and Orchestration parameters.

When you have an activated reception shape, you cannot have orchestration parameters. So make your choice

 

 

The solution is offline because its associated Team Foundation Server is offline

Another very frustrating problem, sometime your Visual Studio 2010 solution appears offline. So you rebind it and check in, but if you closed VS and re-open your solution, it is always offline and you can read in the source control windows The solution is offline because its associated Team Foundation Server is offline