There is no agent available for role '{0}', which runs diagnostic data adapters. Your tests can be run, but the diagnostic ...

There is no agent available for role '{0}', which runs diagnostic data adapters. Your tests can be run, but the diagnostic data adapters will not be run. If you want to run your tests with the diagnostic data adapters, perform one of the following actions and then run your tests from the Run Tests view:

- You can wait for an agent to become available for this role.
- If there are any agents that are offline that can be used for this role, you can bring the agent online or restart the agent so that it is available.
- You can add another agent to the role. You may have to install a new agent and add it to a test controller and then add this agent to the role.