应用程序定义元数据中存在致命错误。在将项目加载到设计器之前必须修复这些错误... HOWTO FIX [英] There are fatal errors in the application definition metadata. Those errors must be fixed before the project can be loaded in the designer... HOWTO FIX

问题描述

我无法打开LightSwitch应用程序了。我总是得到以下错误

应用程序定义元数据中存在致命错误。在将项目加载到设计器之前必须修复这些错误... HOWTO FIX

 

我做的最后一件事就是尝试用2个孩子制作一个listdetails屏幕表。

 

我该如何解决这个问题？我不知道我要编辑哪个文件。

解决方案

此消息显示模型文件（.lsml文件包含错误）  在解决方案资源管理器中，切换到文件模型，您可以在数据文件夹中找到此文件。

但是，除非您手动编辑文件或执行某些操作，否则不应进入此模式文件合并在源代码管理工具中。  否则，它表示LightSwitch工具中存在错误。

您应该能够在错误列表窗口中看到更多错误消息。 这些错误可能包含有关出错的更多详细信息。 你能看看你能在那里找到什么吗？ 这些消息可以帮助我们识别问题
，并获取有关如何修补文件的信息。

谢谢

Lifeng Lu

I can't open my LightSwitch application anymore. I always get following errror

There are fatal errors in the application definition metadata. Those errors must be fixed before the project can be loaded in the designer... HOWTO FIX

 

the last thing I did was trying to make a listdetails screen of table with 2 childs.

 

How can I fix this ? I don't know which file I have to edit.

解决方案

This message says the model file (the .lsml file contains errors).  In the solution explorer, switch to file model, you can find this file in the data folder.

However, you should not get into this unless you edit the file by hand, or do some file merging inside a source control tool.   Otherwise, it indicates a bug in the LightSwitch tool.

You should be able to see more error messages inside the error list window.  Those errors may contain more detail information about what has gone wrong.  Can you take a look to see what you can find there?  Those messages might help us to identify the issue, and also get information about how to patch the file.

Thanks

Lifeng Lu

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