title: Getting "No agent found in pool Default which satisfies the specified demands" error in Azure Pipeline
body: <p>I'm relatively new to Azure DevOps. I have Azure DevOps Server 2019 installed on a Windows 2016 server. I created an Azure pipeline using the classic editor. I have four steps in my agent job which are: install node, 'npm install', 'dotnet restore', and 'ng test'. When I run the build I get the following error:</p>
  <pre><code> No agent found in pool Default which satisfies the specified demands:
       Agent.Version -gtVersion 2.115.0 
  </code></pre>
  <p>I looked at other StackOverflow posts and installed Visual Studio 2019 on the server to try to solve the problem. Still got the same error. Do I need to add something to the pipeline?</p>