在Flutter iOS版本中，print（）语句未在Android Studio的控制台中打印任何数据，但相同的代码对于Flutter Android版本也能正常工作。
这是扑朔迷离的医生总结：
[?] Flutter (Channel master, v1.10.7-pre.109, on Mac OS X 10.14.6 18G103, locale en-IN)
[?] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[?] Xcode - develop for iOS and macOS (Xcode 11.0)
[?] Android Studio (version 3.5)
[?] IntelliJ IDEA Community Edition (version 2019.1)
[?] Connected device (1 available)
• No issues found!
我有一个大问题。由于两天 Xcode 只显示黑色的故事板，如下所示。正如您可以想象的那样，这对我来说很糟糕，因为我无法在背景变黑的情况下工作。
显示的错误是“发生内部错误。编辑功能可能受到限制。”
您可以在下面看到带有错误的 Log.txt
DATE:
=================================
Monday, 1. February 2021 at 21:43:26 Central European Standard Time
2021-02-01 20:43:26 +0000
=================================
XCODE VERSION INFO:
=================================
Version = 12.4 (12D4e)
Plugin Version = 17701
Beta Version = 1
OS Version = 11.2 (20D64)
=================================
ERROR:
=================================
Encountered an error communicating with IBAgent-iOS. (Failure reason: IBAgent-iOS (-1) failed to launch): Failed to launch IBAgent-iOS via CoreSimulator spawn (Failure reason: Failed to spawn IBAgent-iOS on iPhone X? (0670D6F0-16E0-43A4-9E6E-D2B37DCD777D, iOS 14.4, Booted)): Invalid …