如何获取一个ASP.NET应用程序5部署在Azure网站的错误详细信息？ [英] How to Get Error Details of an ASP.NET 5 app deployed on Azure Websites?
问题描述
我有一个网站，几个项目库的ASP.NET 5解决方案。我使用MVC 6和Entity Framework 7.在本地的应用程序工作正常，直到今天，它也正在Azure上部署为Azure的网站。
I have an ASP.NET 5 solution with a website and several project libraries. I'm using MVC 6 and Entity Framework 7. Locally the app is working fine and until today it was working also on Azure deployed as an Azure Website.
但今天在Azure上最新的部署后，我的启动得到了这样的错误500（还是做工精细本地）：
But today after the latest deployment on Azure I got an error 500 like this on the startup (still working fine locally):
我试图得到更多的细节：
I tried to get more details by :
- 使用中间件诊断
- 在web.config文件中添加customError / HTTPError这样的设置
- 下载所产生的网页DetailedError
似乎错误/异常时启动/配置的步骤发生，但我仍然得到一般性的错误页面没有细节。即使在服务器（DetailedErrors文件夹）中产生的版本，我得到这样的：
It seems that the error/exception is happening during the Startup/Configure step but I'm still getting the generic error page without details. Even the version generated on the server (DetailedErrors folder) I got this:
我启用了失败请求跟踪，但仍然没有有用的信息：
I enabled the Failed Request Tracing but still no useful information:
即使我剥离下来的启动/配置code，并添加一个try / catch的建议，我得到了同样的错误，而不细节。这似乎是一个配置/编译问题，但很难不带任何信息进行调试。
Even if I strip down the code in the Startup/Configure and add a try/catch as suggested I got the same error without détails. It seems to be a configuration/compilation issue but hard to debug without any information.
推荐答案
在RC1（如beta8，也许），应该使用显然是：
In RC1 (as of beta8, perhaps), one should apparently use:
app.UseDeveloperExceptionPage();
..这显然只工作，如果 app.Properties [host.AppMode] 是发展 。
但是，这并没有为我工作。我得到的错误信息是明确的，同时启动应用程序时出现错误的，我发现，没有任何给定的配置将解决这一点，因为配置执行前的错误发生。
But this didn't work for me. The error message I was getting was specifically "An error occurred while starting the application", I have found that none of the given configurations will resolve this because the error is occurring before the configurations execute.
不知何故，发布目标文件夹必须已经得到了中损坏发布，因为我发现的删除整个部署目录，并重新发布解决了这个问题
Somehow, the publish target folder must have gotten corrupted during publish because I found that deleting the entire deployment directory and re-publishing resolved the problem.
另外，这里是参考：<一href=\"http://docs.asp.net/en/latest/fundamentals/diagnostics.html\">http://docs.asp.net/en/latest/fundamentals/diagnostics.html
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