Error building Player

Unity Engine
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1

Hello, when I try to build for Windows Phone 8 I get the following error:

Error building Player: Exception: Error: type `System.EnvironmentVariableTarget` doesn't exist in target framework.
Error: type `System.EnvironmentVariableTarget` doesn't exist in target framework.

Anyone has any idea?

2

Yup, there’s no such class in that namespace on Windows Phone 8:

http://msdn.microsoft.com/en-us/library/windowsphone/develop/system(v=vs.105).aspx