error: /Users/pooya/Library/Developer/Xcode/DerivedData/MY-Project/Build/Products/Debug-iphoneos/Charts.framework: No such file or directory

ignoring file /Users/pooya/Library/Developer/Xcode/DerivedData/ZF_Vendor-cgqfmefljmubdqfloevghfslaasp/Build/Products/Debug-iphonesimulator/Charts.framework/Charts, file was built for i386 which is not the architecture being linked (x86_64): /Users/pooya/Library/Developer/Xcode/DerivedData/MyProject/Build/Products/Debug-iphonesimulator/Charts.framework/Charts
Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$__TtC6Charts12BarChartData", referenced from:
      objc-class-ref in ChartsViewController.o
  "_OBJC_CLASS_$__TtC6Charts15BarChartDataSet", referenced from:
      objc-class-ref in ChartsViewController.o
  "_OBJC_CLASS_$__TtC6Charts17BarChartDataEntry", referenced from:
      objc-class-ref in ChartsViewController.o
  "_OBJC_CLASS_$_ChartDefaultValueFormatter", referenced from:
      objc-class-ref in ChartsViewController.o
  "_OBJC_CLASS_$_ChartDefaultAxisValueFormatter", referenced from:
      objc-class-ref in ChartsViewController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

post_install do |installer|
    installer.pods_project.targets.each do |target|
      target.build_configurations.each do |config|
        config.build_settings['SWIFT_VERSION'] = '3.0'
      end
   end
  end