Monday, March 7, 2016

Mixed mode assembly is built against version 'v1.1.4322' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.":null

Create app.config and modify it


 <?xml version="1.0" encoding="utf-8" ?>  
 <configuration>  
  <startup useLegacyV2RuntimeActivationPolicy="true">  
   <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />  
  </startup>  
 </configuration>  



Ensure that this project has Microsoft.Bcl.Build installed and packages.config is located next to the project file

In my Xamarin form application their was dependency Restclient on Microsoft.Bcl.Build Microsoft.Bcl. i just remove all using nuget and ...