title: Error NU1101: Unable to find package ProjectABC.Core.Services. No packages exist with this id in source(s)
body: <p>I am trying to implement CI/CD on Azure DevOps for my Asp.net Core project.</p>
  
  <p>Project having Nuget packages from three different sources:</p>
  
  <p><a href="https://i.stack.imgur.com/fJBSh.png" rel="noreferrer"><img src="https://i.stack.imgur.com/fJBSh.png" alt="enter image description here"></a></p>
  
  <p>MSBUild in Azure Pipeline is going to find nuget packages in Offline Packages or Nuget.org only but not going to find external source which i am also using:
  <a href="http://dev-abc-api-nugetserver-wi.azurewebsites.net/nuget/" rel="noreferrer">http://dev-abc-api-nugetserver-wi.azurewebsites.net/nuget/</a></p>
  
  <p>I have tried below code in Azure Pipeline Build but that didn't work</p>
  
  <pre><code>/p:RestoreAdditionalSources="http://dev-abc-api-nugetserver-wi.azurewebsites.net/nuget/"  /t:Rebuild
  </code></pre>
  
  <p>But still receiving same error:</p>
  
  <blockquote>
    <p>Error NU1101: Unable to find package abc.Core.Services. No packages
    exist with this id in source(s): Microsoft Visual Studio Offline
    Packages, nuget.org</p>
  </blockquote>
  
  <p>My build pipeline:</p>
  
  <p><a href="https://i.stack.imgur.com/C5XzL.png" rel="noreferrer"><img src="https://i.stack.imgur.com/C5XzL.png" alt="enter image description here"></a></p>