Nuget and Teamcity Agent not allowed to run this configuration

You may not always be in a position to Run all compatible, In that case you can go to Agents--> Particular agent --> comaptible configurations --> Assign configurations --> Search and select the specific Job or build.

Most likely the agent is configured to run only explicitly assigned configurations. Plesase, check the Agents -> -> "Compatible configurations" tab.

There is a combo box with options "Run all compatible" / "Run assined .. ". Make sure "Run all compatible" is selected