Could not load file or assembly 'Google.Apis.Auth, Version=1.36.1.0

I am having the same issue as in the following issue #208

However, I am not updating I am adding those dependencies for the first time. I am unable to run an example successfully. I added the required configuration to a config file extracted an IConfigurationSection out of it and created an AdWordsUser to run the example.

var config = new AdWordsAppConfig(section);
codeExample.Run(new AdWordsUser(config));

The configuration settings get loaded successfully, but I get the following error:

System.IO.FileLoadException: Could not load file or assembly 'Google.Apis.Auth, Version=1.36.1.0, Culture=neutral, PublicKeyToken=4b01fa6e34db77ab'. An operation is not legal in the current state. (Exception from HRESULT: 0x80131509)
File name: 'Google.Apis.Auth, Version=1.36.1.0, Culture=neutral, PublicKeyToken=4b01fa6e34db77ab'
   at Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.RefreshAccessTokenInOfflineMode()
   at Google.Api.Ads.Common.OAuth.AdsOAuthProviderImpl.GetAuthHeader()
   at Google.Api.Ads.Common.OAuth.OAuthClientMessageInspector.BeforeSendRequest(Message& request, IClientChannel channel)
   at System.ServiceModel.Dispatcher.ImmutableClientRuntime.BeforeSendRequest(ProxyRpc& rpc)
   at System.ServiceModel.Channels.ServiceChannel.PrepareCall(ProxyOperationRuntime operation, Boolean oneway, ProxyRpc& rpc)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(MethodCall methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(MethodInfo targetMethod, Object[] args)
--- End of stack trace from previous location where exception was thrown ---
   at System.Reflection.DispatchProxyGenerator.Invoke(Object[] args)
   at generatedProxy_1.get(Selector )
   at Google.Api.Ads.AdWords.Examples.CSharp.v201806.GetCampaigns.Run(AdWordsUser user) in C:\Projects\aws-csharp-vs\FirstApiCall.cs:line 79

[AndreasKoblischke]

The reason is: The API references both Versions of the Google.Apis.Core DLL. 1.36.1.0 AND the actual one (in my case 1.49.0.0). Its getting really confusing if you load the DLL at runtime. At best using Google Ads where the error is located together with Google Analytics with tends to use the correct DLL reference.

So what to do:

You need to map the old version of Google.Apis.Core 1.36.1.0 to your preferred one. You can do this by adding a bindingRedirect to you app.config (It need to be in your startup project(s). Down in a referred DLL project does not work!)

`

<runtime>

   <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

     <dependentAssembly>

       <assemblyIdentity name="Google.Apis.Core" publicKeyToken="4b01fa6e34db77ab" culture="neutral" />
       <bindingRedirect oldVersion="0.0.0.0-1.36.1.0" newVersion="1.49.0.0" />

     </dependentAssembly>

   </assemblyBinding>

</runtime>

`

[MaazAR24]

I get this same error when i create a release from cmd but not through vs