title: Coreplot for implementing barchart
body: <p>Am implementing  barchart using coreplot...am getting the errors bellow which am unable to debug. Can anybody please help me out with the solution for this..Tried all  ways but still couldn find the solution.</p>
  
  <p>Ld /Users/MacMini/Library/Developer/Xcode/DerivedData/DashBoard-cmeoxsnbrnrzrkcwmgmfxqlfuzvo/Build/Products/Debug-iphonesimulator/DashBoard.app/DashBoard normal i386
      cd /Users/MacMini/Desktop/DashBoard
      setenv MACOSX_DEPLOYMENT_TARGET 10.6
      setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
      /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/clang -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.3.sdk -L/Users/MacMini/Library/Developer/Xcode/DerivedData/DashBoard-cmeoxsnbrnrzrkcwmgmfxqlfuzvo/Build/Products/Debug-iphonesimulator -L/Users/MacMini/Desktop/DashBoard -F/Users/MacMini/Library/Developer/Xcode/DerivedData/DashBoard-cmeoxsnbrnrzrkcwmgmfxqlfuzvo/Build/Products/Debug-iphonesimulator -F/Users/MacMini/Desktop/DashBoard -filelist /Users/MacMini/Library/Developer/Xcode/DerivedData/DashBoard-cmeoxsnbrnrzrkcwmgmfxqlfuzvo/Build/Intermediates/DashBoard.build/Debug-iphonesimulator/DashBoard.build/Objects-normal/i386/DashBoard.LinkFileList -mmacosx-version-min=10.6 -ObjC -all_load -Xlinker -objc_abi_version -Xlinker 2 -framework QuartzCore -lCorePlot-CocoaTouch -framework UIKit -framework Foundation -framework CoreGraphics -o /Users/MacMini/Library/Developer/Xcode/DerivedData/DashBoard-cmeoxsnbrnrzrkcwmgmfxqlfuzvo/Build/Products/Debug-iphonesimulator/DashBoard.app/DashBoard</p>
  
  <p>Undefined symbols for architecture i386:
    "_CPTDecimalFromDouble", referenced from:
        -[Barchart viewDidLoad] in Barchart.o
    "_OBJC_CLASS_$_CPTGraphHostingView", referenced from:
        objc-class-ref in Barchart.o
    "_OBJC_CLASS_$_CPTXYGraph", referenced from:
        objc-class-ref in Barchart.o
    "_OBJC_CLASS_$_CPTPlotRange", referenced from:
        objc-class-ref in Barchart.o
    "_OBJC_CLASS_$_CPTBarPlot", referenced from:
        objc-class-ref in Barchart.o
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see invocation)</p>