Error 11: An error occurred when merging assemblies: ILMerge.Merge: ERROR!!: Duplicate type 'xyz' found in assembly 'App_Web_rh2sxhkc'. aspnet_merge
You may have come across this error once or twice while deploying your project if you develop using Web Deployment Projects. It's usually caused when you copy and paste a page and forget to update both the page declaration and code behind file.
But the website builds!?!
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