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    Hi,<br>
    <br>
    I am building a custom application use QGIS 1.8.0 but I get the
    following error:<br>
    <br>
    <i><small><small>        link /LIBPATH:"c:\Qt\4.8.1\lib" /NOLOGO
          /DYNAMICBASE /NXCOMPAT /DEBUG /M<br>
          ANIFEST /MANIFESTFILE:"debug\nile.intermediate.manifest"
          /SUBSYSTEM:WINDOWS "/MA<br>
          NIFESTDEPENDENCY:type='win32'
          name='Microsoft.Windows.Common-Controls' version='<br>
          6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*'
          processorArchitecture='*<br>
          '" /OUT:debug\nile.exe
          @C:\DOCUME~1\CARLOS~1\LOCALS~1\Temp\nmF.tmp<br>
          mapwidget.obj : error LNK2001: unresolved external symbol
          "public: static struct<br>
           QMetaObject const QgsVectorLayer::staticMetaObject"
          (?staticMetaObject@QgsVecto<br>
          rLayer@@2UQMetaObject@@B)<br>
          maptoolselect.obj : error LNK2001: unresolved external symbol
          "public: static st<br>
          ruct QMetaObject const QgsVectorLayer::staticMetaObject"
          (?staticMetaObject@QgsV<br>
          ectorLayer@@2UQMetaObject@@B)<br>
          mapwidget.obj : error LNK2001: unresolved external symbol
          "public: static struct<br>
           QMetaObject const QgsRasterLayer::staticMetaObject"
          (?staticMetaObject@QgsRaste<br>
          rLayer@@2UQMetaObject@@B)<br>
          debug\nile.exe : fatal error LNK1120: 2 unresolved externals<br>
          NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual
          Studio 10.0\VC\BI<br>
          N\link.EXE"' : return code '0x460'<br>
          Stop.<br>
          NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual
          Studio 10.0\VC\BI<br>
          N\nmake.exe"' : return code '0x2'<br>
          Stop.</small></small></i><br>
    <br>
    My .pro file is defined as:<br>
    <br>
    <i><small><small>QT       += core gui sql xml<br>
          <br>
          TARGET = nile<br>
          TEMPLATE = app<br>
          <br>
          unix:INCLUDEPATH += /usr/local/gis/include/qgis
          /usr/local/gis/include ./mapviewsrc<br>
          win32:INCLUDEPATH += C:/QGIS/apps/qgis/include C:/QGIS/include
          ./mapviewsrc<br>
          <br>
          unix:LIBS += -L/usr/local/gis/lib -lgdal -lgeos -lqgis_core
          -lqgis_gui<br>
          win32:LIBS += C:/QGIS/apps/qgis/lib/qgis_core.lib
          C:/QGIS/apps/qgis/lib/qgis_gui.lib C:/QGIS/lib/geos_c_i.lib
          C:/QGIS/lib/gdal_i.lib<br>
          <br>
          <br>
          DEFINES += QGISPLUGINDIR=$${QGISPLUGINDIR} CORE_EXPORT=
          GUI_EXPORT=</small></small></i><br>
    <br>
    I am using QT 4.8.1 and Visual Studio 2010.<br>
    <br>
    Any idea what is causing the error and how to correct it?<br>
    <br>
    Many thanks in advance,<br>
    Carlos<br>
    <br>
    <br>
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