类型或命名空间名称不存在 [英] Type or namespace name does not exist
问题描述
我用Visual Studio 2010中,这是工作的罚款WCF数据服务项目。突然,它并没有编译了。这是给我这样的消息:
I have a WCF Data Service project built with Visual Studio 2010, which was working fine. All of a sudden, it didn't compile anymore. It was giving me messages like:
7出错的类型或命名空间名称'服务'不命名空间System.Data这存在(是否缺少程序集引用?)C:\ü... S型\ Visual Studio 2010中\项目... \ DataService.cs ...
Error 7 The type or namespace name 'Services' does not exist in the namespace 'System.Data' (are you missing an assembly reference?) C:\U...s\Visual Studio 2010\Projects...\DataService.cs ...
8的类型或命名空间名称Linq的错误并不在命名空间系统存在(是否缺少程序集引用?)DependencyResolver.cs 3月14日
Error 8 The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) DependencyResolver.cs 3 14
错误10类型或命名空间名称'网络'不命名空间中存在的System.ServiceModel(是否缺少程序集引用?)
Error 10 The type or namespace name 'Web' does not exist in the namespace 'System.ServiceModel' (are you missing an assembly reference?)
12错误的类型或命名空间名称的DataService'找不到(是否缺少using指令或程序集引用?)
Error 12 The type or namespace name 'DataService' could not be found (are you missing a using directive or an assembly reference?)
我该如何解决这个问题?
How can I fix it?
推荐答案
我也有同样的问题,我不得不将所有项目的目标框架是相同的。然后,它内置的罚款。
I have had the same problem, and I had to set the "Target Framework" of all the projects to be the same. Then it built fine.
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