
Executable Path is a Directory
/Users/flymac/Library/Developer/Xcode/DerivedData/project-fidnwpgktjppikakteauackxjniw/Build/Products/Debug-iphonesimulator/project.app is not a valid path to an executable file.
原因:
Xcode12淘汰了VALID_ARCHS,但是有些集成进来的第三方库还是有这个key,Xcode12模拟器已经用arm架构来编译项目,而link链接的还是x86架构
解决方法:
到Build Settings 中找到VALID_ARCHS,添加x86_64

这个问题解决后,可能还会出现第三方库未找到框架x86_64的问题
not found for architecture x86_64
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_AFHTTPSessionManager", referenced from:
in ANHttpTool.o
"_OBJC_CLASS_$_AFNetworkReachabilityManager", referenced from:
in ANHttpTool.o
"_OBJC_CLASS_$_AFSecurityPolicy", referenced from:
in ANHttpTool.o
"_OBJC_CLASS_$_DWKWebView", referenced from:
in YJPracticeWebViewController.o
"_OBJC_CLASS_$_IQKeyboardManager", referenced from:
in AppDelegate.o
"_OBJC_CLASS_$_MJRefreshAutoNormalFooter", referenced from:
in YJCommentsListController.o
"_OBJC_CLASS_$_MJRefreshNormalHeader", referenced from:
in YJCommentsListController.o
"_OBJC_CLASS_$_RACCommand", referenced from:
in YJCommentViewModel.o
"_OBJC_CLASS_$_RACSignal", referenced from:
in YJCommentViewModel.o
"_OBJC_CLASS_$_SDImageCache", referenced from:
in ANCacheManager.o
"_OBJC_CLASS_$_SDWebImageDownloader", referenced from:
in YJCommentViewController.o
"_OBJC_CLASS_$_SVProgressHUD", referenced from:
in NetWorkTools.o
"_OBJC_CLASS_$_TKAlertCenter", referenced from:
in UIView+ANHUD.o
"_YYScreenSize", referenced from:
-[YJWKWebViewController webView] in YJWKWebViewController.o
-[YJWKWebViewController webView] in YJWKWebViewController.o
___54-[YJPracticeDetailController setDataWithIndex:isLast:]_block_invoke_2 in YJPracticeDetailController.o
-[YJPracticeDetailController scrollView] in YJPracticeDetailController.o
-[YJPracticeDetailController becomeVipView] in YJPracticeDetailController.o
-[YJSingCourseListController setUpView] in YJSingCourseListController.o
-[YJPracticeWebViewController webView] in YJPracticeWebViewController.o
-[YJPracticeWebViewController webView] in YJPracticeWebViewController.o
...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

解决方法:
在Podfie中添加以下代码
post_install do |installer|
installer.generated_projects.each do |project|
project.targets.each do |target|
target.build_configurations.each do |config|
config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.0'
config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
end
end
end
end