VS2012 Intellisense broken for Workflow projects

Question

I am currently working on a Workflow dll in VS2012 c#. At some point my intellisense in that projected decided to stop working. It does not auto come up but it opens when I use the keyboard shortcut. NOW even when it opens with the keyboard shortcut it doesn't work. By that I mean it doesn't pick up anything thing I added aka. my references to other DLLs, folders in the solution containing workflow.xamls, usings etc.

I decided to test it in a new clean project, it worked for a bit then suddenly 3 workflows in it just did the same thing. Doesn't pick up the workflow or any of my added classes.

Screen shots;

I have tried a lot of different possible fixes:

• Deleting sln file

• Refreshing cache (crtl shift r if i recall correctly)

• Deleting %AppData%\\Microsoft\\VisualStudio\\11.0\\ReflectedSchemas

• Resetting settings to default

• Checking if its enabled (intellisense)

• Restart VS

• Restart laptop

Any ideas? I really need some help on this.

EDIT Tested the project on another pc and it does the same. Problem seems to be with the solution/project.

Answer 1

After looking at this again and debugging what was wrong further (clean projects, adding in dll's one at a time etc) I discovered that adding the Microsoft.Net.Http dll to a WorkFlow project broke the intellisense.

Microsoft report on it.

EDIT:

The reason is System.Net.Http.Primitives.dll references System.Runtime.dll and System.Runtime.InteropServices.dll, but these 2 dlls were not referenced in the project.

Removing System.Net.Http.Primitives.dll from references or add references to references System.Runtime.dll and System.Runtime.InteropServices.dll would bring back IntelliSense.

Answer 2

For reference, I resolved this by adding the following references to my project (Windows Workflow Foundation 4.5 on .NET 4.5):

• System.Runtime.dll (from C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\System.Runtime.dll)
• System.Resources.ResourceManager.dll (from C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\System.Resources.ResourceManager.dll)
• System.Runtime.InteropServices.dll (from C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319\\System.Runtime.InteropServices.dll)

Answer 3

CTRL + ALT + SPACE在建议和完成模式之间切换Intelisense;）

Answer 4

We have had the exact problem-only with the new Prism dlls. Shauns answer helped us find the fix. So if someone encounters the problem and finds the following dlls in his project - he could attempt removing them:

• Microsoft.Practices.Prism.Interactivity.dll
• Microsoft.Practices.Prism.MefExtensions.dll
• Microsoft.Practices.Prism.Mvvm.dll
• Microsoft.Practices.Prism.Mvvm.Desktop.dll
• Microsoft.Practices.Prism.SharedInterfaces.dll
• Microsoft.Practices.ServiceLocation.dll

These are OK and can be left in the solution:

• Microsoft.Practices.Prism.Composition.dll
• Microsoft.Practices.Prism.PubSubEvents.dll