对macOS catalina命令进行一些更新后，“ flutter run”停止工作。
"flutter doctor":
[✓] Flutter (Channel master, v1.14.7-pre.52, on Mac OS X 10.15 19A603, locale en-GB)
[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.3.1)
[✓] Android Studio (version 3.5)
[✓] VS Code (version 1.41.1)
[✓] Connected device (1 available)
Launching lib/main.dart on iPhone 8 in debug mode...
Running Xcode build...
Xcode build done. 3.4s
Failed to build iOS app
Error output from Xcode build:
↳
** BUILD FAILED **
=== BUILD TARGET path_provider OF PROJECT Pods WITH CONFIGURATION Debug ===
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulato
r13.2.sdk/usr/include/module.modulemap:1:8: error: redefinition of module 'AppleTextureEncoder'
module AppleTextureEncoder [system] [extern_c] {
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/inc
lude/module.modulemap:1:8: note: previously defined here
module AppleTextureEncoder [system] [extern_c] {
^
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulato
r13.2.sdk/usr/include/module.modulemap:7:8: error: redefinition of module 'Compression'
module Compression [system] [extern_c] {
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk/usr/inc
lude/module.modulemap:7:8: note: previously defined here
module Compression [system] [extern_c] {
^
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulato
r13.2.sdk/usr/include/module.modulemap:13:8: error: redefinition of module 'Darwin'
module Darwin [system] [extern_c] [no_undeclared_includes] {
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
Could not build the application for the simulator.
Error launching application on iPhone 8.
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