Question

使用核心绘图库构建应用程序时，我遇到以下问题。它在2天前工作。但它突然停止了运行。

libCorePlot-CocoaTouch.a (2 slices)
Undefined symbols for architecture x86_64:
  "_CPTDecimalFromFloat", referenced from:
      -[GraphView generateLayout] in GraphView.o
  "_CPTDecimalFromInt", referenced from:
      -[GraphView generateLayout] in GraphView.o
  "_OBJC_CLASS_$_CPTAxisLabel", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTBarPlot", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTColor", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTConstraints", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTFill", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTGraphHostingView", referenced from:
      _OBJC_CLASS_$_GraphView in GraphView.o
  "_OBJC_CLASS_$_CPTMutableLineStyle", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTMutableTextStyle", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTPlotRange", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_CLASS_$_CPTXYGraph", referenced from:
      objc-class-ref in GraphView.o
  "_OBJC_METACLASS_$_CPTGraphHostingView", referenced from:
      _OBJC_METACLASS_$_GraphView in GraphView.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

将新的核心图库框架添加到您的项目中。删除旧库。这些是要遵循的步骤

下载核心图库。
打开xcode CorePlot-CocoaTouch.xcodeproj
转到项目并点击构建
现在转到mac中的核心情节框架文件夹。您可以在其中看到构建文件夹。
现在打开终端并提供核心情节路径
cd CorePlot_1.4 / Source / build /
输入lipo -create ./Debug-iphoneos/libCorePlot-CocoaTouch.a ./Debug-iphonesimulator/libCorePlot-CocoaTouch.a -output core_plot_all.a
创建了新库，现在将此库和核心标题添加到您的项目中。
现在构建您的项目。

之后将-ObjC添加到其他链接器标志

在ios中Coreplot构建失败的问题

1 个答案: