今天在搭配asp.net mvc的时候爆出以下错误：

The following errors occurred while attempting to load the app.
– 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.

大概的意思是说webconfig里缺少配置节，主要原因是因为我添加程序包 Owin 引起的。解决方法就是在 web.config的<appSettings>节点里添加：<add key=”owin:AutomaticAppStartup” value=”false” />  就可以解决

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