Apple Mach-O 链接器 (Id) 错误 PDColoredProgressView

Question

我正在尝试使用 PDColoredProgressView 从这里。它正在工作，但由于某种原因，XCode 认为它没有它并抛出 27 Apple Mach-O Linker (Id) 错误。啊？有人能解码这个吗？谢谢！

Ld /Users/xxxxxxxx/Library/Developer/Xcode/DerivedData/xxxxx-cqamvgtgfzdealbjtkomtjzxkdgr/Build/Intermediates/xxxxxxx.build/Debug-iphoneos/xxxxx.build/Objects-normal/armv6/xxxxx normal armv6
    cd "/Users/xxxxxxx/Documents/iPhone Apps/xxxxx"
    setenv IPHONEOS_DEPLOYMENT_TARGET 4.0
    setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2 -arch armv6 -isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk -L/Users/xxxxxxxxx/Library/Developer/Xcode/DerivedData/xxxxx-cqamvgtgfzdealbjtkomtjzxkdgr/Build/Products/Debug-iphoneos -F/Users/xxxxxxxxx/Library/Developer/Xcode/DerivedData/xxxxx-cqamvgtgfzdealbjtkomtjzxkdgr/Build/Products/Debug-iphoneos -filelist /Users/xxxxxxxxx/Library/Developer/Xcode/DerivedData/xxxxx-cqamvgtgfzdealbjtkomtjzxkdgr/Build/Intermediates/xxxxx.build/Debug-iphoneos/xxxxx.build/Objects-normal/armv6/xxxxx.LinkFileList -dead_strip -miphoneos-version-min=4.0 -framework UIKit -framework Foundation -framework QuartzCore -o /Users/xxxxxxxxx/Library/Developer/Xcode/DerivedData/xxxxx-cqamvgtgfzdealbjtkomtjzxkdgr/Build/Intermediates/xxxxx.build/Debug-iphoneos/xxxxx.build/Objects-normal/armv6/xxxxx

Undefined symbols for architecture armv6:
  "_CGRectGetMinX", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGRectGetMinY", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextSetRGBStrokeColor", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextSetLineWidth", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextIsPathEmpty", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGColorSpaceCreateDeviceRGB", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextSaveGState", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGRectGetHeight", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
  "_CGContextStrokeRect", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextRestoreGState", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextSetFillColorWithColor", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGRectGetWidth", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
  "_CGContextTranslateCTM", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextScaleCTM", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
  "_CGContextSetRGBFillColor", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextMoveToPoint", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextFillRect", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextClip", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextAddLineToPoint", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextStrokePath", referenced from:
      -[PDColoredProgressView drawRect:] in PDColoredProgressView.o
  "_CGContextAddRect", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
  "_CGGradientRelease", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextDrawLinearGradient", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGColorSpaceRelease", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextAddArcToPoint", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
  "_CGGradientCreateWithColorComponents", referenced from:
      _fillRectWithLinearGradient in PDColoredProgressView.o
  "_CGContextClosePath", referenced from:
      _addRoundedRectToPath in PDColoredProgressView.o
ld: symbol(s) not found for architecture armv6
collect2: ld returned 1 exit status

谢谢你！

*注意：我从错误消息中删除了我的用户名和应用程序名称，并将其替换为 x

Answer 1

从错误日志中，我相信您缺少项目或库架构设置（取决于您使用上述代码的位置）。只需在项目设置中添加armv6（或其等效的架构名称），一切就应该没问题。

Answer 2

您还没有安装 Core Graphics 库！添加核心图形库，然后在 PDColoredProgressView.h 中添加 #import..

您可能还需要 QuartzCore 来完成您正在做的一些事情！ armv7 与它无关，我不知道他们为什么把它扔在那里哈哈！