Flutter没有发现问题，但是创建项目后出现“尝试在https://pub.dartlang.org处找到cupertino_icons软件包时出现TLS错误”的软件包。错误
我尝试了这些：
Flutter app behind corporate firewall throws TLS error during packages get
Network Connection Proxies in Dart Editor
颤抖-v医生-v
[ +15 ms] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref --symbolic @{u}
[ +722 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ +2 ms] origin/stable
[ ] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref HEAD
[ +612 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ +1 ms] stable
[ ] executing: [Q:\Developer\flutter\] git ls-remote --get-url origin
[ +741 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ ] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%H
[ +659 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ +1 ms] 8661d8aecd626f7f57ccbcb735553edc05a2e713
[ ] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%ar
[ +675 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar
[ ] 7 weeks ago
[ ] executing: [Q:\Developer\flutter\] git describe --match v*.*.* --first-parent --long --tags
[ +672 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ +1 ms] v1.2.1-0-g8661d8aec
[+3410 ms] java -version
[ +174 ms] [√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.16299.847], locale tr-TR)
[ +3 ms] • Flutter version 1.2.1 at Q:\Developer\flutter
[ +1 ms] • Framework revision 8661d8aecd (7 weeks ago), 2019-02-14 19:19:53 -0800
[ ] • Engine revision 3757390fa4
[ ] • Dart version 2.1.2 (build 2.1.2-dev.0.0 0a7dcf17eb)
\[ +2 ms] executing: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb devices -l
[ +458 ms] Exit code 0 from: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb devices -l
[ +1 ms] List of devices attached
ad78615b device product:gemini model:MI_5 device:gemini transport_id:1
[ +13 ms] C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb -s ad78615b shell getprop |[ +551 ms] executing: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\tools\bin\sdkmanager --licenses
[ +53 ms] ro.hardware = qcom [+56173 ms] [√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[ +1 ms] • Android SDK at C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk
[ +1 ms] • Android NDK location not configured (optional; useful for native profiling support)
[ ] • Platform android-28, build-tools 28.0.3
[ ] • Java binary at: Q:\Developer\android-studio\jre\bin\java
[ ] • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
[ ] • All Android licenses accepted.
[ +1 ms] [√] Android Studio (version 3.3)
[ ] • Android Studio at Q:\Developer\android-studio
[ ] • Flutter plugin version 34.0.1
[ ] • Dart plugin version 182.5215
[ ] • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
[ ] [√] IntelliJ IDEA Ultimate Edition (version 2019.1)
[ ] • IntelliJ at Q:\Developer\editors
[ ] • Flutter plugin version 34.0.4
[ ] • Dart plugin version 191.6183.87
[ +1 ms] [√] VS Code, 64-bit edition (version 1.32.3)
[ ] • VS Code at C:\Program Files\Microsoft VS Code
[ ] • Flutter extension version 2.25.0
[ ] [√] Proxy Configuration
[ ] • HTTP_PROXY is set
[ ] • NO_PROXY is localhost,127.0.0.1
[ ] • NO_PROXY contains 127.0.0.1
[ ] • NO_PROXY contains localhost
[ ] [√] Connected device (1 available)
[ ] • MI 5 • ad78615b • android-arm64 • Android 8.0.0 (API 26)
[ ] • No issues found!
[ +7 ms] "flutter doctor" took 60.205ms.
[ ] "flutter doctor" took 60.205ms.
[ +15 ms] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref --symbolic @{u}
[ +722 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ +2 ms] origin/stable
[ ] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref HEAD
[ +612 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ +1 ms] stable
[ ] executing: [Q:\Developer\flutter\] git ls-remote --get-url origin
[ +741 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ ] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%H
[ +659 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ +1 ms] 8661d8aecd626f7f57ccbcb735553edc05a2e713
[ ] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%ar
[ +675 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar
[ ] 7 weeks ago
[ ] executing: [Q:\Developer\flutter\] git describe --match v*.*.* --first-parent --long --tags
[ +672 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ +1 ms] v1.2.1-0-g8661d8aec
[+3410 ms] java -version
[ +174 ms] [√] Flutter (Channel stable, v1.2.1, on Microsoft Windows [Version 10.0.16299.847], locale tr-TR)
[ +3 ms] • Flutter version 1.2.1 at Q:\Developer\flutter
[ +1 ms] • Framework revision 8661d8aecd (7 weeks ago), 2019-02-14 19:19:53 -0800
[ ] • Engine revision 3757390fa4
[ ] • Dart version 2.1.2 (build 2.1.2-dev.0.0 0a7dcf17eb)
\[ +2 ms] executing: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb devices -l
[ +458 ms] Exit code 0 from: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb devices -l
[ +1 ms] List of devices attached
ad78615b device product:gemini model:MI_5 device:gemini transport_id:1
[ +13 ms] C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\platform-tools\adb -s ad78615b shell getprop |[ +551 ms] executing: C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk\tools\bin\sdkmanager --licenses
[ +53 ms] ro.hardware = qcom [+56173 ms] [√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[ +1 ms] • Android SDK at C:\Users\Kafeduran.NTD_EBI\AppData\Local\Android\sdk
[ +1 ms] • Android NDK location not configured (optional; useful for native profiling support)
[ ] • Platform android-28, build-tools 28.0.3
[ ] • Java binary at: Q:\Developer\android-studio\jre\bin\java
[ ] • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
[ ] • All Android licenses accepted.
[ +1 ms] [√] Android Studio (version 3.3)
[ ] • Android Studio at Q:\Developer\android-studio
[ ] • Flutter plugin version 34.0.1
[ ] • Dart plugin version 182.5215
[ ] • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
[ ] [√] IntelliJ IDEA Ultimate Edition (version 2019.1)
[ ] • IntelliJ at Q:\Developer\editors
[ ] • Flutter plugin version 34.0.4
[ ] • Dart plugin version 191.6183.87
[ +1 ms] [√] VS Code, 64-bit edition (version 1.32.3)
[ ] • VS Code at C:\Program Files\Microsoft VS Code
[ ] • Flutter extension version 2.25.0
[ ] [√] Proxy Configuration
[ ] • HTTP_PROXY is set
[ ] • NO_PROXY is localhost,127.0.0.1
[ ] • NO_PROXY contains 127.0.0.1
[ ] • NO_PROXY contains localhost
[ ] [√] Connected device (1 available)
[ ] • MI 5 • ad78615b • android-arm64 • Android 8.0.0 (API 26)
[ ] • No issues found!
[ +7 ms] "flutter doctor" took 60.205ms.
[ ] "flutter doctor" took 60.205ms.
flutter -v创建-v rad
[ +18 ms] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref --symbolic @{u}
[ +703 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ +2 ms] origin/stable
[ ] executing: [Q:\Developer\flutter\] git rev-parse --abbrev-ref HEAD
[ +626 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ +1 ms] stable
[ ] executing: [Q:\Developer\flutter\] git ls-remote --get-url origin
[ +617 ms] Exit code 0 from: git ls-remote --get-url origin
[ +1 ms] https://github.com/flutter/flutter.git
[ +1 ms] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%H
[ +647 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ ] 8661d8aecd626f7f57ccbcb735553edc05a2e713
[ ] executing: [Q:\Developer\flutter\] git log -n 1 --pretty=format:%ar
[ +646 ms] Exit code 0 from: git log -n 1 --pretty=format:%ar
[ ] 7 weeks ago
[ +1 ms] executing: [Q:\Developer\flutter\] git describe --match v*.*.* --first-parent --long --tags
[ +668 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ +1 ms] v1.2.1-0-g8661d8aec
[+1033 ms] Creating project rad...
[ +95 ms] rad\.gitignore (created)
[ +12 ms] rad\.idea\libraries\Dart_SDK.xml (created)
[ +11 ms] rad\.idea\libraries\Flutter_for_Android.xml (created)
[ +4 ms] rad\.idea\libraries\KotlinJavaRuntime.xml (created)
[ +4 ms] rad\.idea\modules.xml (created)
[ +6 ms] rad\.idea\runConfigurations\main_dart.xml (created)
[ +5 ms] rad\.idea\workspace.xml (created)
[ +4 ms] rad\.metadata (created)
[ +4 ms] rad\android\app\build.gradle (created)
[ +8 ms] rad\android\app\src\main\java\com\example\rad\MainActivity.java (created)
[ +19 ms] rad\android\build.gradle (created)
[ +7 ms] rad\android\rad_android.iml (created)
[ +6 ms] rad\android\app\src\debug\AndroidManifest.xml (created)
[ +7 ms] rad\android\app\src\main\AndroidManifest.xml (created)
[ +6 ms] rad\android\app\src\main\res\drawable\launch_background.xml (created)
[ +11 ms] rad\android\app\src\main\res\mipmap-hdpi\ic_launcher.png (created)
[ +9 ms] rad\android\app\src\main\res\mipmap-mdpi\ic_launcher.png (created)
[ +10 ms] rad\android\app\src\main\res\mipmap-xhdpi\ic_launcher.png (created)
[ +9 ms] rad\android\app\src\main\res\mipmap-xxhdpi\ic_launcher.png (created)
[ +8 ms] rad\android\app\src\main\res\mipmap-xxxhdpi\ic_launcher.png (created)
[ +10 ms] rad\android\app\src\main\res\values\styles.xml (created)
[ +9 ms] rad\android\app\src\profile\AndroidManifest.xml (created)
[ +9 ms] rad\android\gradle\wrapper\gradle-wrapper.properties (created)
[ +8 ms] rad\android\gradle.properties (created)
[ +4 ms] rad\android\settings.gradle (created)
[ +4 ms] rad\ios\Runner\AppDelegate.h (created)
[ +7 ms] rad\ios\Runner\AppDelegate.m (created)
[ +4 ms] rad\ios\Runner\main.m (created)
[ +4 ms] rad\ios\Runner.xcodeproj\project.pbxproj (created)
[ +15 ms] rad\ios\Runner.xcodeproj\xcshareddata\xcschemes\Runner.xcscheme (created)
[ +10 ms] rad\ios\Flutter\AppFrameworkInfo.plist (created)
[ +8 ms] rad\ios\Flutter\Debug.xcconfig (created)
[ +4 ms] rad\ios\Flutter\Release.xcconfig (created)
[ +6 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Contents.json (created)
[ +9 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-1024x1024@1x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@1x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@2x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@3x.png (created)
[ +5 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@1x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@2x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@3x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@1x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@2x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@3x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-60x60@2x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-60x60@3x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-76x76@1x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-76x76@2x.png (created)
[ +4 ms] rad\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-83.5x83.5@2x.png (created)
[ +7 ms] rad\ios\Runner\Assets.xcassets\LaunchImage.imageset\Contents.json (created)
[ +6 ms] rad\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage.png (created)
[ +5 ms] rad\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage@2x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage@3x.png (created)
[ +3 ms] rad\ios\Runner\Assets.xcassets\LaunchImage.imageset\README.md (created)
[ +6 ms] rad\ios\Runner\Base.lproj\LaunchScreen.storyboard (created)
[ +6 ms] rad\ios\Runner\Base.lproj\Main.storyboard (created)
[ +4 ms] rad\ios\Runner\Info.plist (created)
[ +6 ms] rad\ios\Runner.xcodeproj\project.xcworkspace\contents.xcworkspacedata (created)
[ +6 ms] rad\ios\Runner.xcodeproj\xcshareddata\xcschemes\Runner.xcscheme (existing - skipped)
[ +2 ms] rad\ios\Runner.xcworkspace\contents.xcworkspacedata (created)
[ +10 ms] rad\lib\main.dart (created)
[ +8 ms] rad\rad.iml (created)
[ +12 ms] rad\pubspec.yaml (created)
[ +10 ms] rad\README.md (created)
[ +9 ms] rad\test\widget_test.dart (created)
[ +103 ms] Running "flutter packages get" in rad...
[ +5 ms] Using Q:\Developer\flutter\.pub-cache for the pub cache.
[ +2 ms] executing: [Q:\workspace\projects\rad\] Q:\Developer\flutter\bin\cache\dart-sdk\bin\pub.bat
--verbosity=warning --verbose get --no-precompile
[+66695 ms] Got TLS error trying to find package cupertino_icons at https://pub.dartlang.org.
[ +27 ms] pub get failed (69) -- attempting retry 1 in 1 second...
[+1019 ms] Using Q:\Developer\flutter\.pub-cache for the pub cache.
[ +2 ms] executing: [Q:\workspace\projects\rad\] Q:\Developer\flutter\bin\cache\dart-sdk\bin\pub.bat
--verbosity=warning --verbose get --no-precompile
[+68239 ms] Got TLS error trying to find package cupertino_icons at https://pub.dartlang.org.
[ +29 ms] pub get failed (69) -- attempting retry 2 in 2 seconds...
[+2012 ms] Using Q:\Developer\flutter\.pub-cache for the pub cache.
[ +2 ms] executing: [Q:\workspace\projects\rad\] Q:\Developer\flutter\bin\cache\dart-sdk\bin\pub.bat
--verbosity=warning --verbose get --no-precompile
[+66594 ms] Got TLS error trying to find package cupertino_icons at https://pub.dartlang.org.
[ +28 ms] pub get failed (69) -- attempting retry 3 in 4 seconds...
[+4008 ms] Using Q:\Developer\flutter\.pub-cache for the pub cache.
[ +3 ms] executing: [Q:\workspace\projects\rad\]
出现此错误： “尝试在https://pub.dartlang.org处找到packagecupertino_icons软件包时出现TLS错误。”
无法获取软件包。你有什么主意，我想摆脱什么？