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No assembly found containing an OwinStartupAttribute. No assembly found containing a Startup or [AssemblyName].Startup class. To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config. To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config.

Ravi Yadav
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1 Answers1

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this one is work for everyone,i have tried others like owin:AutomaticAppStartup" value="false but didnt work.Below is the final way

<appSettings>
 <add key="owin:HandleAllRequests" value="true"/>
 </appSettings>
Ravi Yadav
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  • You *could* also just add the OwinStartup attribute at assembly-level and point it at your Startup class. – juunas Jun 20 '17 at 19:44