筆者在運行flutter項目到iOS模擬器時，遇到如下報錯：

Launching lib/main.dart on iPhone 11 Pro Max in debug mode...

Running Xcode build...? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

├─Assembling Flutter resources...? ? ? ? ? ? ? ? ? ? ? ? ? 5.1s

└─Compiling, linking and signing...? ? ? ? ? ? ? ? ? ? ? ? 7.6s

Xcode build done.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 17.4s

Failed to build iOS app

Error output from Xcode build:

?

? ? ** BUILD FAILED **

Xcode's output:

?

? ? /Users/zzz/Desktop/pro/flutter/one/build/ios/Debug-iphonesimulator/Runner.app: resource fork, Finder information, or similar detritus not allowed

? ? Command CodeSign failed with a nonzero exit code

? ? note: Using new build system

? ? note: Planning build

? ? note: Constructing build description

Could not build the application for the simulator.

Error launching application on iPhone 11 Pro Max.

如果在當前目錄下執(zhí)行
xattr?-rc .
再次運行flutter run，沒什么問題，當再次運行的時候，又報同樣的錯誤，每次運行都執(zhí)行一次?xattr?-rc . 感覺很傻了


完美解決：
1、關閉Xcode，打開終端：
2、進入DerivedData目錄

cd ~/Library/Developer/Xcode/DerivedData/

3、然后再終端執(zhí)行：

xattr -rc .

4、再運行flutter項目，完美解決