title: How to resolve Could not load file or assembly 'Azure.Core'
body: <p>Could any one explain why we are getting such errors like Could not load file or assembly. Whenever I update nuget references specially in azure sdk I end up with this error and because of lack of knowledge I was struggling to fix them very weirdly. Could you please explain this error ?  I mean I can digest this error but I couldn't find the real solution for that.</p>
  <p>I have clearly decided that I will understand this error and get to more on this platform. If you could explain this step by step, that would increase my knowledge with core productivity.</p>
  <p>I have very limited knowledge about this type of error that we need add some code in web.config file.</p>
  <pre><code>&lt;bindingRedirect oldVersion=&quot;0.0.0.0-0.0.0.1&quot; newVersion=&quot;0.0.0.1&quot; /&gt;
  </code></pre>
  <p>But to be very honest I don't know how to decide which version need be replace with old and new version. I have recently added Azure.Identity nuget to my project.</p>
  <pre><code>  &lt;ItemGroup&gt;
      &lt;PackageReference Include=&quot;Azure.Identity&quot; Version=&quot;1.5.0&quot; /&gt;
      &lt;PackageReference Include=&quot;Azure.Storage.Blobs&quot; Version=&quot;12.10.0&quot; /&gt;
   &lt;/ItemGroup&gt;
  </code></pre>
  <p>For Example now I been struggling with this error.</p>
  <pre><code>System.IO.FileLoadException
  HResult=0x80131040
  Message=Could not load file or assembly 'Azure.Core, Version=1.19.0.0, Culture=neutral, 
  PublicKeyToken=92742159e12e44c8' or one of its dependencies. The located assembly's 
  manifest definition does not match the assembly reference. (Exception from HRESULT: 
  0x80131040)
  Source=Azure.Storage.Blobs
  StackTrace:
  </code></pre>
  <p>I know where to change to solve this error but don't know what to change.</p>