NWDS and DC Build Problem

Hi,
I recently installed a new version of NWDS on my workstation.  This was an upgrade to Version 7.0.10   For some reason my DC will no longer  build successfully since using the 7.0.10 version of NWDS.  The error I get is:
/userOut/Development Component (com.sap.ide.eclipse.component.provider.listener.DevConfListener) [Thread[ModalContext,5,main]] ERROR: /mydc : Build failed for /mydc in variant "default": null
Thanks,
Brian

Hi All
I facing same problem. Can you help me how to resolve this. I want to convert existing WebDynpro project into NWDI. I followed two ways to achieve it.
1) I followed step by step in this help link
<a href="http://help.sap.com/saphelp_nw04s/helpdata/en/42/c8204dd57f136fe10000000a1553f7/frameset.htm">http://help.sap.com/saphelp_nw04s/helpdata/en/42/c8204dd57f136fe10000000a1553f7/frameset.htm</a>.
2) I newly created one DC (WebDynpro) project and there is an option "Import from existing local project" option.
I used both of them still there build problems in my DC.

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            if((fp = fopen("~/test.txt","r")) == NULL)
                NSLog(@"open failed");
        return 0;
    This will compile ad run in Xcode with a project type of comand line tool

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