title: Azure Function: Could not load file or assembly WebJobs.Host
body: <p>I have an error saying </p>
  
  <blockquote>
    <p>Error: The function runtime is unable to start. mscorlib: Could not
    load file or assembly 'Microsoft.Azure.WebJobs.Host, Version=3.0.0.0,
    Culture=neutral, PublicKeyToken=null' or one of its dependencies. The
    system cannot find the file specified.  </p>
  </blockquote>
  
  <p>Do I need to setup anything in the azure portal? I can run it on my local machine. After I published the function to azure and tried to run the function it gave me this error.</p>