Win 8 Metro App can not work with MS CRM 2011?

Recently, I will use MS CRM 2011 SDK to work with Win 8 Metro App. But when I import “microsoft.xrm.client.dll” in the Win 8 Metro App project, It has an error message like the following picture.

My VS2012 language is Japanese.

I have tested other C# project, such as ConsoleApp, WPFApp. These projects can import CRM dll and connect to CRM Online Server.

But When I import some CRM dll into Win 8 Metro App project , it has an error like the picture.

The following is error message:

'D:\CRM_SDK\sdk_JP\bin\microsoft.xrm.client.dll' への参照を追加できませんでした。 プロジェクトは '.NETCore' を対象としていますが、ファイル参照は '.NETFramework' を対象としています。これはサポートされないシナリオです。

This message means can not add " microsoft.xrm.client.dll", the project use  .NETCore object. But  " microsoft.xrm.client.dll" use  '.NETFramework' object, so   "microsoft.xrm.client.dll" can no be supported.

Have a method to solve this situation?

Thanks.