System.Collections.Specialized.NameValueCollection doesn't exist in target framework.

Hi I am getting this error while building the player for Windows Phone 8. The error come during Postprocessing Player

Error building Player: Exception: Error: type System.Collections.Specialized.NameValueCollection doesn't exist in target framework. Error: type System.Collections.Specialized.NameObjectCollectionBase doesn't exist in target framework.

While looking at http://msdn.microsoft.com/enus/libr...specialized.namevaluecollection(v=vs.80).aspx this clearly support System.Collections.Specialized.NameValueCollection .


The error is repeated uncountable number of times. Someone please help me out with this.

 

Your link gave error for me but at here its listed as not supported:

http://msdn.microsoft.com/en-us/lib...system.collections.specialized(v=vs.105).aspx

 

Ohh! I am sorry I don't know why the link is not working.

But just choose .Net2.0 in other version as that's what Unity uses and it shows System.Collections.Specialized.NameValueCollection supported there.

 

Nope, afaik Unity uses mono 2 for other platforms but Windows 8 ones use different .net framework.

 

I got exactly the same error in the post processing phase. What plug-ins or frameworks do you use? May it be related to NGUI or some Prime31 plugin?

 

Removing all Prime31 stuff from my project solved that issue.

 

I have removed the whole plugin folder from my project but still getting the same error. I am using JavaScript.

 

Go into Player setting for Windows Phone 8 in Unity 4.2
In the last line in "Other Settings" there is an option of API compatibility option.
There it clearly shows .Net 2.0

 

I removed all Prime31 stuff from the plugins and editor folders.

 

Removed everything from editor too but still getting the same error.

 

In my case, the problem is gone when I deleted the P31Reskit.dll from the Plugins folder.

 

I have only restsharp.dll in my plugins folder which is a default dll of Unity. And my Editor folder is empty. Can you suggest where might be the problem.

 

I don't have restsharp.dll in my plugins folder. Did you try deleting it?

 

deleting all prime31 stuff fixed it for me.

 

Previously I wasn't able to delete the restsharp.dll but this time I was able to delete it and it worked.

For anyone who is having the same problem clean up your plugin folder and editor folder and it should work.

 

dont forget to delete p31restkit.dll

deleted almost all plugins, but im sure that the culprit is prime31

 

Thanks all you guys. But in my case I have to delete JSon.dll file along with prime31 and then the problem is solved. Anybody who is still facing the same problem can do this also, and it might be helpful.

 

Chiming in here for all your folks enjoying the wonderful API changes Microsoft decided to force on any store apps. Have a look at the General section of our Windows Store documentation for a proper fix. The relevant section in there is entitled Special Note About Windows Store and Windows Phone Crazy DLL Handling