Visual Studio 2010中突然不能看空间？ [英] Visual Studio 2010 suddenly can't see namespace?

问题描述

我的C＃的WinForms解决方案有两个项目。
一个DLL这是我工作的主要项目，可执行的WinForms我称之为沙盒，这样我可以编译/运行/调试DLL容易一气呵成。

My C# WinForms solution has two projects. A DLL which is the main project I'm working on, and an executable WinForms I call "Sandbox" so that I can compile/run/debug the DLL easily in one go.

我在.NET 4.0中工作了两个项目。

I'm working in .Net 4.0 for both projects.

一切工作正常，直到我加了一些貌似无辜code，并在DLL中的System.Web参考。
现在我的沙盒项目无法看到DLL项目的命名空间。我没有改变任何东西，我相信应该已经影响这一点。

Everything was working fine until I added some seemingly innocent code, and a reference to System.Web in the DLL. Now my Sandbox project can't see the namespace of the DLL project. I didn't change anything which I believe should have affected this.

如果我删除该项目引用从Sandbox引用和DLL重新添加，那么红强调全部消失和颜色编码回来为我所有类等;但只要我努力构建解决方案，整个事情就会崩溃一次。

If I delete the project reference to the DLL from the Sandbox references and re-add it, then the red underlines all disappear and the colour coding comes back for all my classes etc; but as as soon as I try to build the solution, the whole thing falls apart again.

在Sandbox的引用和视图对象浏览器当我右键单击该DLL项目，我可以看到在那里命名空间，所有的东西。

When I right-click the DLL project in the Sandbox's references and view in object browser, I can see the namespace and all the stuff in there.

我有一种感觉，这可能是某种错误的？

I have a feeling this might be some sort of bug?

这是某种形式的VS2010的bug？我在几个月前有这个同样的问题，我只能通过一个全新的项目，并重新导入我的文件的时候修复它。但是这一次，我有一个bajillion文件，只会做，作为最后一招！

Is this some sort of VS2010 bug? I had this same issue a few months ago and I could only fix it at the time by making a whole new project and re-importing my files. This time, however, I have a bajillion files and will only do that as a last resort!

编辑：
panickedly经历和撤消我的变化，试图找出是什么原因造成的问题后，它似乎是这一行：

After panickedly going through and undoing all my changes, trying to find what caused the problems, it seems to be this line:

string url = "http://maps.google.com?q=" + HttpUtility.UrlEncode(address);

如果我注释掉这一行，然后我得到没有命名空间的错误和生成项目的罚款。我看不出什么毛病此行虽然。

If I comment out this line, then I get no namespace errors and the project builds fine. I can't see anything wrong with this line though.

推荐答案

我准备宣布这个VS2010中的一个bug，这已经被咬了太多的程序员。解决方法是简单的：项目+属性，应用程序选项卡，更改目标框架.NET框架4，而不是由默认选择客户端配置文件

I'm ready to declare this a bug in VS2010, this has bitten way too many programmers already. The fix is easy: Project + Properties, Application tab, change Target Framework to ".NET Framework 4" instead of the Client Profile that is selected by default.

的System.Web不包括在客户简档。其摆在首位此选项是相当愚蠢的，客户端配置文件是比.NET 4.0的完整版小只有15％。有它在默认情况下选中甚至愚蠢。但是，我离题。

System.Web is not included in the client profile. Having this option in the first place is quite silly, the client profile is only 15% smaller than the full version of .NET 4.0. Having it selected by default is even sillier. But I digress.

更新：仁慈这一切都得到了修复VS2012。这不再使客户机配置文件为新项目的默认。和客户端配置得到了在.NET 4.5，甩掉包袱彻底退役。

UPDATE: mercifully this all got fixed in VS2012. Which no longer makes the client profile the default for a new project. And the client profile got retired completely in .NET 4.5, good riddance.

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