我在Xcode中的错误是：Apple Mach-O链接器错误：（null）：链接器命令失败，退出代码为1（使用-v查看调用）
Ld /Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Products/Debug-iphonesimulator/PhoenixRebirth.app/PhoenixRebirth normal i386
cd /Users/yoannmeyer/Desktop/Flatic
setenv IPHONEOS_DEPLOYMENT_TARGET 7.0
setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk -L/Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Products/Debug-iphonesimulator -F/Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Products/Debug-iphonesimulator -F. -FFlatic -FFlaticTests -Fimages -FPSD -FFlatic/AAShareBubbles -FFlatic/Classes -FFlatic/CRNavigationController -FFlatic/ExpandingSelect -FFlatic/FeedParser -FFlatic/Images.xcassets -FFlatic/Libraries -FFlatic/MWPhotoBrowser.bundle -FFlatic/NZCircularImageView -FFlatic/PBSafariActivity -FFlatic/PBWebViewController -FFlatic/ScreenShots -FFlatic/TwitterCover -Fimages/App\ Icons -Fimages/Icons -Fimages/images -Fimages/Launch\ Images -Fimages/TutorialImages -FFlatic/AAShareBubbles/AAShareBubbles.bundle -FFlatic/Images.xcassets/AppIcon.appiconset -FFlatic/Images.xcassets/bg_tabbar.imageset -FFlatic/Images.xcassets/Icons -FFlatic/Images.xcassets/LaunchImage.launchimage -FFlatic/Images.xcassets/Selection\ Petals -FFlatic/Images.xcassets/Tutorial\ Images -FFlatic/Libraries/DACircularProgress -FFlatic/Libraries/Google\ AdMob -FFlatic/Libraries/MBProgressHUD -FFlatic/Libraries/PSTCollectionView -FFlatic/Libraries/SDWebImage -FFlatic/MWPhotoBrowser.bundle/images -FFlatic/Images.xcassets/Icons/icon-share.imageset -FFlatic/Images.xcassets/Icons/icon_category.imageset -FFlatic/Images.xcassets/Icons/icon_gallery.imageset -FFlatic/Images.xcassets/Icons/icon_home.imageset -FFlatic/Images.xcassets/Icons/icon_location.imageset -FFlatic/Images.xcassets/Icons/icon_map.imageset -FFlatic/Images.xcassets/Icons/icon_post_ph.imageset -FFlatic/Images.xcassets/Icons/icon_social.imageset -FFlatic/Images.xcassets/Icons/img_error.imageset -FFlatic/Images.xcassets/Icons/pointer.imageset -FFlatic/Images.xcassets/Selection\ Petals/petal-email.imageset -FFlatic/Images.xcassets/Selection\ Petals/petal-facebook.imageset -FFlatic/Images.xcassets/Selection\ Petals/petal-save.imageset -FFlatic/Images.xcassets/Selection\ Petals/petal-twitter.imageset -FFlatic/Images.xcassets/Selection\ Petals/petal-unsave.imageset -FFlatic/Images.xcassets/Tutorial\ Images/HeaderImage1.imageset -FFlatic/Images.xcassets/Tutorial\ Images/HeaderImage2.imageset -FFlatic/Images.xcassets/Tutorial\ Images/HeaderImage3.imageset -FFlatic/Images.xcassets/Tutorial\ Images/HeaderImage4.imageset -FFlatic/Images.xcassets/Tutorial\ Images/TutorialBackground.imageset -FFlatic/Libraries/SDWebImage/SDWebImage -F/Users/yoannmeyer/Desktop/Flatic -filelist /Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Intermediates/PhoenixRebirth.build/Debug-iphonesimulator/PhoenixRebirth.build/Objects-normal/i386/PhoenixRebirth.LinkFileList -Xlinker -objc_abi_version -Xlinker 2 -ObjC -fobjc-arc -fobjc-link-runtime -Xlinker -no_implicit_dylibs -mios-simulator-version-min=7.0 -lGoogleAdMobAds -framework AVFoundation -framework CoreGraphics -framework CoreTelephony -framework MessageUI -framework CoreData -framework AdSupport -framework Parse -framework SystemConfiguration -framework StoreKit -framework Security -framework QuartzCore -framework MobileCoreServices -lz -framework CoreLocation -framework CFNetwork -framework AudioToolbox -framework UIKit -framework MapKit -framework Foundation -framework FacebookSDK -Xlinker -dependency_info -Xlinker /Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Intermediates/PhoenixRebirth.build/Debug-iphonesimulator/PhoenixRebirth.build/Objects-normal/i386/PhoenixRebirth_dependency_info.dat -o /Users/yoannmeyer/Library/Developer/Xcode/DerivedData/PhoenixRebirth-cxmvvuurdfbimjfpvcbaybydfxzo/Build/Products/Debug-iphonesimulator/PhoenixRebirth.app/PhoenixRebirth
ld: library not found for -lGoogleAdMobAds
clang: error: linker command failed with exit code 1 (use -v to see invocation)
请帮助我：/提前感谢您的答案。
Cordialy，Yoann.M