[mapguide-users] 'ExtensionAttribute' is ambiguous in the namespace 'System.Runtime.CompilerServices'.

[carls]

I upgraded the Maestro SDK to newest version, and target my Web project to
.net 4.5, and recompiled it with VS2012.
But I met the following error message.

InternalXmlHelper.vb(9) : error BC30560: 'ExtensionAttribute' is ambiguous
in the namespace 'System.Runtime.CompilerServices'. 

I searched posts and found only one thread about it, writen by Jackie Ng. 
link on MapGuide User
<http://osgeo-org.1560.n6.nabble.com/Compile-Maestro-API-in-Visual-Studio-2010-and-NET-Framework-3-5-td4183037.html>  

But I still can't clearly know how to deal with it.

Could please help give more information.

Thank you very much!



--
View this message in context: http://osgeo-org.1560.n6.nabble.com/ExtensionAttribute-is-ambiguous-in-the-namespace-System-Runtime-CompilerServices-tp5011789.html
Sent from the MapGuide Users mailing list archive at Nabble.com.