未将对象引用设置为对象数据上下文的实例
我正在尝试在远程服务器上发布 asp.net mvc 站点，但出现如图所示的错误。任何想法 
I am trying to publish asp.net mvc site on remote server I am getting the error as shown in figure. Any idea
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我解决了这个问题，问题是设计器文件连接名称与 web.config 的名称不同。一旦两个名称相同，它就开始正常运行。
I solved it the problem was that in the designer file connection name was different then that of web.config. Once both name are same it started running fine.
只要有机会发布更大尺寸的图像，堆栈跟踪就很难阅读。
作为猜测，看起来异常是在代码的数据库上下文区域中引发的 - 可能是实体框架？
首先，看一下
Models.EvloetDatabaseContext构造函数 - 其中是否有任何内容可能导致空引用异常？您可以在该方法中放置一些
Trace.WriteLine调用，并使用诸如 DebugView 查看发送了多少条消息。我在调试客户端服务器上的问题时经常使用他。Any chance you could post a larger scale of the image, the stack trace is very tricky to read.
As a guess, it looks like the exception is being raised in the database context area of code - possibly Entity Framework??
First, have a look at the
Models.EvloetDatabaseContextconstructor - is there anything in there that might cause the null reference exception?You could put some
Trace.WriteLinecalls in that method and use a tool such as DebugView to see how many of those messages are being sent out. I use his often when debugging issues on a client's server.