flutter - Flutter create 结果出错 Got TLS error trying to find package cupertino_icons at https://pub.dartlang.org
问题描述
当我尝试使用 flutter create 在命令行中创建新的颤振项目时，我收到错误消息： Got TLS error trying to find package cupertino_icons at https://pub.dartlang.org
在 Android Studio 中创建颤振项目也会卡住，没有任何错误消息。
我在 Windows 10 上，我在 C 驱动器上有颤振 SDK，并且我在机器上也有完全的管理员权限。这是 Flutter 在新机器上的全新安装。
我尝试以管理员身份运行 Android Studio 和命令行，但没有帮助。
这是颤振医生 -v 的输出：
[√] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.18363.657], locale en-US)
• Flutter version 1.12.13+hotfix.8 at C:\src\flutter
• Framework revision 0b8abb4724 (2 weeks ago), 2020-02-11 11:44:36 -0800
• Engine revision e1e6ced81d
• Dart version 2.7.0
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
• Android SDK at C:\Users\myuser\AppData\Local\Android\sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.3
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
• All Android licenses accepted.
[√] Android Studio (version 3.6)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 43.0.2
• Dart plugin version 192.7761
• Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
[!] Connected device
! No devices available
! Doctor found issues in 1 category.
这是flutter create app -v的一些输出：
[ +10 ms] executing: [C:\src\flutter\] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +228 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +1 ms] 0b8abb4724aa590dd0f429683339b1e045a1594d
[ ] executing: [C:\src\flutter\] git describe --match v*.*.* --first-parent --long --tags
[ +213 ms] Exit code 0 from: git describe --match v*.*.* --first-parent --long --tags
[ ] v1.12.13+hotfix.8-0-g0b8abb472
[ +5 ms] executing: [C:\src\flutter\] git rev-parse --abbrev-ref --symbolic @{u}
[ +211 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ +1 ms] origin/stable
[ ] executing: [C:\src\flutter\] git ls-remote --get-url origin
[ +211 ms] Exit code 0 from: git ls-remote --get-url origin
[ +1 ms] https://github.com/flutter/flutter.git
[ +240 ms] executing: [C:\src\flutter\] git rev-parse --abbrev-ref HEAD
[ +233 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] stable
[ +69 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +25 ms] Artifact Instance of 'AndroidMavenArtifacts' is not required, skipping update.
[ +8 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ +1 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ +2 ms] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ +4 ms] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +2 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ +2 ms] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ +3 ms] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +26 ms] Creating project mytestapp... androidx: true
[ +24 ms] mytestapp\.gitignore (created)
[ +10 ms] mytestapp\.idea\libraries\Dart_SDK.xml (created)
[ +6 ms] mytestapp\.idea\libraries\Flutter_for_Android.xml (created)
[ +2 ms] mytestapp\.idea\libraries\KotlinJavaRuntime.xml (created)
[ +4 ms] mytestapp\.idea\modules.xml (created)
[ +3 ms] mytestapp\.idea\runConfigurations\main_dart.xml (created)
[ +3 ms] mytestapp\.idea\workspace.xml (created)
[ +3 ms] mytestapp\.metadata (created)
[ +2 ms] mytestapp\android\app\build.gradle (created)
[ +5 ms] mytestapp\android\app\src\main\kotlin\com\example\mytestapp\MainActivity.kt (created)
[ +25 ms] mytestapp\android\build.gradle (created)
[ +9 ms] mytestapp\android\mytestapp_android.iml (created)
[ +1 ms] mytestapp\android\.gitignore (created)
[ +3 ms] mytestapp\android\app\src\debug\AndroidManifest.xml (created)
[ +1 ms] mytestapp\android\app\src\main\AndroidManifest.xml (created)
[ +2 ms] mytestapp\android\app\src\main\res\drawable\launch_background.xml (created)
[ +5 ms] mytestapp\android\app\src\main\res\mipmap-hdpi\ic_launcher.png (created)
[ +4 ms] mytestapp\android\app\src\main\res\mipmap-mdpi\ic_launcher.png (created)
[ +5 ms] mytestapp\android\app\src\main\res\mipmap-xhdpi\ic_launcher.png (created)
[ +4 ms] mytestapp\android\app\src\main\res\mipmap-xxhdpi\ic_launcher.png (created)
[ +5 ms] mytestapp\android\app\src\main\res\mipmap-xxxhdpi\ic_launcher.png (created)
[ +4 ms] mytestapp\android\app\src\main\res\values\styles.xml (created)
[ +4 ms] mytestapp\android\app\src\profile\AndroidManifest.xml (created)
[ +4 ms] mytestapp\android\gradle\wrapper\gradle-wrapper.properties (created)
[ +5 ms] mytestapp\android\gradle.properties (created)
[ +2 ms] mytestapp\android\settings.gradle (created)
[ +5 ms] mytestapp\ios\Runner\AppDelegate.swift (created)
[ +5 ms] mytestapp\ios\Runner\Runner-Bridging-Header.h (created)
[ +4 ms] mytestapp\ios\Runner.xcodeproj\project.pbxproj (created)
[ +8 ms] mytestapp\ios\Runner.xcodeproj\xcshareddata\xcschemes\Runner.xcscheme (created)
[ +6 ms] mytestapp\ios\.gitignore (created)
[ +5 ms] mytestapp\ios\Flutter\AppFrameworkInfo.plist (created)
[ +6 ms] mytestapp\ios\Flutter\Debug.xcconfig (created)
[ +5 ms] mytestapp\ios\Flutter\Release.xcconfig (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Contents.json (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-1024x1024@1x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@1x.png (created)
[ +4 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@2x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-20x20@3x.png (created)
[ +4 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@1x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@2x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-29x29@3x.png (created)
[ +7 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@1x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@2x.png (created)
[ +6 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-40x40@3x.png (created)
[ +4 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-60x60@2x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-60x60@3x.png (created)
[ +6 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-76x76@1x.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-76x76@2x.png (created)
[ +4 ms] mytestapp\ios\Runner\Assets.xcassets\AppIcon.appiconset\Icon-App-83.5x83.5@2x.png (created)
[ +6 ms] mytestapp\ios\Runner\Assets.xcassets\LaunchImage.imageset\Contents.json (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage.png (created)
[ +5 ms] mytestapp\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage@2x.png (created)
[ +6 ms] mytestapp\ios\Runner\Assets.xcassets\LaunchImage.imageset\LaunchImage@3x.png (created)
[ +6 ms] mytestapp\ios\Runner\Assets.xcassets\LaunchImage.imageset\README.md (created)
[ +5 ms] mytestapp\ios\Runner\Base.lproj\LaunchScreen.storyboard (created)
[ +5 ms] mytestapp\ios\Runner\Base.lproj\Main.storyboard (created)
[ +5 ms] mytestapp\ios\Runner\Info.plist (created)
[ +2 ms] mytestapp\ios\Runner.xcodeproj\project.xcworkspace\contents.xcworkspacedata (created)
[ +5 ms] mytestapp\ios\Runner.xcodeproj\xcshareddata\xcschemes\Runner.xcscheme (existing - skipped)
[ ] mytestapp\ios\Runner.xcworkspace\contents.xcworkspacedata (created)
[ +4 ms] mytestapp\lib\main.dart (created)
[ +4 ms] mytestapp\mytestapp.iml (created)
[ +2 ms] mytestapp\pubspec.yaml (created)
[ +3 ms] mytestapp\README.md (created)
[ +5 ms] mytestapp\test\widget_test.dart (created)
[ +33 ms] Running "flutter pub get" in mytestapp...
[ +3 ms] Using C:\src\flutter\.pub-cache for the pub cache.
[ +2 ms] executing: [c:\flutter_projects\mytestapp\] C:\src\flutter\bin\cache\dart-sdk\bin\pub.bat --verbose get
--no-precompile
[ +449 ms] FINE: Pub 2.7.0
[ +2 ms] IO : Spawning "cmd /c ver" in c:\flutter_projects\mytestapp\.
[ +51 ms] IO : Finished ver. Exit code 0.
[ +1 ms] | stdout:
[ ] | |
[ ] | | Microsoft Windows [Version 10.0.18363.657]
[ ] | Nothing output on stderr.
[ +34 ms] MSG : Resolving dependencies...
[ +7 ms] SLVR: fact: mytestapp is 1.0.0+1
[ +2 ms] SLVR: derived: mytestapp
[ +17 ms] SLVR: fact: mytestapp depends on flutter any from sdk
[ +6 ms] SLVR: fact: mytestapp depends on cupertino_icons ^0.1.2
[ +1 ms] SLVR: fact: mytestapp depends on flutter_test any from sdk
[ +1 ms] SLVR: selecting mytestapp
[ +2 ms] SLVR: derived: flutter_test any from sdk
[ +4 ms] SLVR: derived: cupertino_icons ^0.1.2
[ ] SLVR: derived: flutter any from sdk
[ +2 ms] IO : Get versions from https://pub.dartlang.org/api/packages/cupertino_icons.
[ +13 ms] IO : HTTP GET https://pub.dartlang.org/api/packages/cupertino_icons
[ ] | Accept: application/vnd.pub.v2+json
[ +6 ms] | X-Pub-OS: windows
[ ] | X-Pub-Command: get
[ +3 ms] | X-Pub-Session-ID: 12B32BE8-FB1F-481E-B6B4-8A8C643EEF43
[ +1 ms] | X-Pub-Environment: flutter_cli:create
[ +1 ms] | X-Pub-Reason: direct
[ +2 ms] | user-agent: Dart pub 2.7.0
[ +475 ms] IO : HTTP error:
[ +2 ms] | HandshakeException: Handshake error in client (OS Error:
[ ] | CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:354))
[ ] |
[ +1 ms] | dart:_http _HttpClient.openUrl
[ ] | package:http/src/io_client.dart 33:36 IOClient.send
[ ] | package:pub/src/http.dart 68:39 _PubHttpClient.send
[ ] | package:http_retry/http_retry.dart 97:33 RetryClient.send
[ ] | package:pub/src/http.dart 194:43 _ThrowingClient.send
[ ] | package:http_throttle/http_throttle.dart 33:31 ThrottleClient.send
[ +2 ms] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ +2 ms] | package:http_throttle/http_throttle.dart ThrottleClient.send
[ ] | package:http/src/base_client.dart 169:38 BaseClient._sendUnstreamed
[ ] | package:http/src/base_client.dart 32:7 BaseClient.get
[ ] | package:http/src/base_client.dart 117:12 BaseClient.read
[ ] | package:pub/src/source/hosted.dart 160:31 BoundHostedSource.doGetVersions
[ ] | package:pub/src/source.dart 167:12 BoundSource.getVersions
[ ] | package:pub/src/solver/package_lister.dart 76:44 PackageLister._versions.<fn>.<fn>
[ +1 ms] | dart:async runZoned
[ ] | package:pub/src/http.dart 272:10 withDependencyType
[ +2 ms] | package:pub/src/solver/package_lister.dart 75:33 PackageLister._versions.<fn>
[ ] | dart:async new Future.sync
[ +4 ms] | package:async/src/async_memoizer.dart 43:42 AsyncMemoizer.runOnce
[ ] | package:pub/src/solver/package_lister.dart 74:58 PackageLister._versions
[ ] | package:pub/src/solver/package_lister.dart 111:21 PackageLister.countVersions
[ ] | package:pub/src/solver/version_solver.dart 354:44 VersionSolver._choosePackageVersion.<fn>
[ ] | package:pub/src/utils.dart 301:39 minByAsync
[ +2 ms] | ===== asynchronous gap ===========================
[ +3 ms] | dart:async _asyncThenWrapperHelper
[ ] | package:pub/src/utils.dart minByAsync
[ ] | package:pub/src/solver/version_solver.dart 350:25 VersionSolver._choosePackageVersion
[ ] | package:pub/src/solver/version_solver.dart 97:22 VersionSolver.solve
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:pub/src/solver/version_solver.dart VersionSolver.solve
[ ] | package:pub/src/solver.dart 35:10 resolveVersions.<fn>
[ +2 ms] | package:pub/src/log.dart 378:18 progress
[ +3 ms] | package:pub/src/solver.dart 32:10 resolveVersions
[ ] | package:pub/src/entrypoint.dart 217:24 Entrypoint.acquireDependencies
[ ] | package:pub/src/command/get.dart 41:23 GetCommand.run
[ ] | package:args/command_runner.dart 197:27 CommandRunner.runCommand
[ ] | package:pub/src/command_runner.dart 171:39 PubCommandRunner.runCommand.<fn>
[ ] | dart:async new Future.sync
[ ] | package:pub/src/utils.dart 109:12 captureErrors.<fn>
[ ] | package:stack_trace Chain.capture
[ +2 ms] | package:pub/src/utils.dart 122:11 captureErrors
[ +3 ms] | package:pub/src/command_runner.dart 171:13 PubCommandRunner.runCommand
[ +644 ms] IO : Retry #1 for GET https://pub.dartlang.org/api/packages/cupertino_icons...
[ +3 ms] IO : HTTP GET https://pub.dartlang.org/api/packages/cupertino_icons
[ +2 ms] | Accept: application/vnd.pub.v2+json
[ ] | X-Pub-OS: windows
[ ] | X-Pub-Command: get
[ ] | X-Pub-Session-ID: 12B32BE8-FB1F-481E-B6B4-8A8C643EEF43
[ ] | X-Pub-Environment: flutter_cli:create
[ ] | X-Pub-Reason: direct
[ +1 ms] | user-agent: Dart pub 2.7.0
[ +249 ms] IO : HTTP error:
[ +1 ms] | HandshakeException: Handshake error in client (OS Error:
[ ] | CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:354))
[ ] |
[ ] | dart:_http _HttpClient.openUrl
[ ] | package:http/src/io_client.dart 33:36 IOClient.send
[ ] | package:pub/src/http.dart 68:39 _PubHttpClient.send
[ ] | package:http_retry/http_retry.dart 97:33 RetryClient.send
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:http_retry/http_retry.dart RetryClient.send
[ ] | package:pub/src/http.dart 194:43 _ThrowingClient.send
[ +2 ms] | package:http_throttle/http_throttle.dart 33:31 ThrottleClient.send
[ ] | ===== asynchronous gap ===========================
[ +3 ms] | dart:async _asyncThenWrapperHelper
[ ] | package:http_throttle/http_throttle.dart ThrottleClient.send
[ ] | package:http/src/base_client.dart 169:38 BaseClient._sendUnstreamed
[ ] | package:http/src/base_client.dart 32:7 BaseClient.get
[ ] | package:http/src/base_client.dart 117:12 BaseClient.read
[ ] | package:pub/src/source/hosted.dart 160:31 BoundHostedSource.doGetVersions
[ ] | package:pub/src/source.dart 167:12 BoundSource.getVersions
[ ] | package:pub/src/solver/package_lister.dart 76:44 PackageLister._versions.<fn>.<fn>
[ ] | dart:async runZoned
[ +1 ms] | package:pub/src/http.dart 272:10 withDependencyType
[ +2 ms] | package:pub/src/solver/package_lister.dart 75:33 PackageLister._versions.<fn>
[ ] | dart:async new Future.sync
[ ] | package:async/src/async_memoizer.dart 43:42 AsyncMemoizer.runOnce
[ ] | package:pub/src/solver/package_lister.dart 74:58 PackageLister._versions
[ ] | package:pub/src/solver/package_lister.dart 111:21 PackageLister.countVersions
[ ] | package:pub/src/solver/version_solver.dart 354:44 VersionSolver._choosePackageVersion.<fn>
[ ] | package:pub/src/utils.dart 301:39 minByAsync
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:pub/src/utils.dart minByAsync
[ +3 ms] | package:pub/src/solver/version_solver.dart 350:25 VersionSolver._choosePackageVersion
[ +2 ms] | package:pub/src/solver/version_solver.dart 97:22 VersionSolver.solve
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:pub/src/solver/version_solver.dart VersionSolver.solve
[ ] | package:pub/src/solver.dart 35:10 resolveVersions.<fn>
[ ] | package:pub/src/log.dart 378:18 progress
[ ] | package:pub/src/solver.dart 32:10 resolveVersions
[ ] | package:pub/src/entrypoint.dart 217:24 Entrypoint.acquireDependencies
[ ] | package:pub/src/command/get.dart 41:23 GetCommand.run
[ ] | package:args/command_runner.dart 197:27 CommandRunner.runCommand
[ ] | package:pub/src/command_runner.dart 171:39 PubCommandRunner.runCommand.<fn>
[ ] | dart:async new Future.sync
[ ] | package:pub/src/utils.dart 109:12 captureErrors.<fn>
[ +2 ms] | package:stack_trace Chain.capture
[ ] | package:pub/src/utils.dart 122:11 captureErrors
[ +2 ms] | package:pub/src/command_runner.dart 171:13 PubCommandRunner.runCommand
[ +815 ms] IO : Retry #2 for GET https://pub.dartlang.org/api/packages/cupertino_icons...
[ +6 ms] IO : HTTP GET https://pub.dartlang.org/api/packages/cupertino_icons
[ +4 ms] | Accept: application/vnd.pub.v2+json
[ +6 ms] | X-Pub-OS: windows
[ +4 ms] | X-Pub-Command: get
[ +6 ms] | X-Pub-Session-ID: 12B32BE8-FB1F-481E-B6B4-8A8C643EEF43
[ +3 ms] | X-Pub-Environment: flutter_cli:create
[ +1 ms] | X-Pub-Reason: direct
[ +1 ms] | user-agent: Dart pub 2.7.0
[ +226 ms] IO : HTTP error:
[ +1 ms] | HandshakeException: Handshake error in client (OS Error:
[ ] | CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:354))
[ ] |
[ ] | dart:_http _HttpClient.openUrl
[ ] | package:http/src/io_client.dart 33:36 IOClient.send
[ ] | package:pub/src/http.dart 68:39 _PubHttpClient.send
[ ] | package:http_retry/http_retry.dart 97:33 RetryClient.send
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:http_retry/http_retry.dart RetryClient.send
[ ] | package:pub/src/http.dart 194:43 _ThrowingClient.send
[ ] | package:http_throttle/http_throttle.dart 33:31 ThrottleClient.send
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:http_throttle/http_throttle.dart ThrottleClient.send
[ +2 ms] | package:http/src/base_client.dart 169:38 BaseClient._sendUnstreamed
[ ] | package:http/src/base_client.dart 32:7 BaseClient.get
[ +1 ms] | package:http/src/base_client.dart 117:12 BaseClient.read
[ ] | package:pub/src/source/hosted.dart 160:31 BoundHostedSource.doGetVersions
[ ] | package:pub/src/source.dart 167:12 BoundSource.getVersions
[ ] | package:pub/src/solver/package_lister.dart 76:44 PackageLister._versions.<fn>.<fn>
[ ] | dart:async runZoned
[ ] | package:pub/src/http.dart 272:10 withDependencyType
[ ] | package:pub/src/solver/package_lister.dart 75:33 PackageLister._versions.<fn>
[ ] | dart:async new Future.sync
[ ] | package:async/src/async_memoizer.dart 43:42 AsyncMemoizer.runOnce
[ ] | package:pub/src/solver/package_lister.dart 74:58 PackageLister._versions
[ ] | package:pub/src/solver/package_lister.dart 111:21 PackageLister.countVersions
[ ] | package:pub/src/solver/version_solver.dart 354:44 VersionSolver._choosePackageVersion.<fn>
[ ] | package:pub/src/utils.dart 301:39 minByAsync
[ +2 ms] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ +1 ms] | package:pub/src/utils.dart minByAsync
[ ] | package:pub/src/solver/version_solver.dart 350:25 VersionSolver._choosePackageVersion
[ ] | package:pub/src/solver/version_solver.dart 97:22 VersionSolver.solve
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:pub/src/solver/version_solver.dart VersionSolver.solve
[ ] | package:pub/src/solver.dart 35:10 resolveVersions.<fn>
[ ] | package:pub/src/log.dart 378:18 progress
[ ] | package:pub/src/solver.dart 32:10 resolveVersions
[ ] | package:pub/src/entrypoint.dart 217:24 Entrypoint.acquireDependencies
[ ] | package:pub/src/command/get.dart 41:23 GetCommand.run
[ ] | package:args/command_runner.dart 197:27 CommandRunner.runCommand
[ ] | package:pub/src/command_runner.dart 171:39 PubCommandRunner.runCommand.<fn>
[ ] | dart:async new Future.sync
[ +2 ms] | package:pub/src/utils.dart 109:12 captureErrors.<fn>
[ ] | package:stack_trace Chain.capture
[ +1 ms] | package:pub/src/utils.dart 122:11 captureErrors
[ ] | package:pub/src/command_runner.dart 171:13 PubCommandRunner.runCommand
[+1277 ms] IO : Retry #3 for GET https://pub.dartlang.org/api/packages/cupertino_icons...
[ +4 ms] IO : HTTP GET https://pub.dartlang.org/api/packages/cupertino_icons
[ ] | Accept: application/vnd.pub.v2+json
[ ] | X-Pub-OS: windows
[ ] | X-Pub-Command: get
[ ] | X-Pub-Session-ID: 12B32BE8-FB1F-481E-B6B4-8A8C643EEF43
[ ] | X-Pub-Environment: flutter_cli:create
[ ] | X-Pub-Reason: direct
[ ] | user-agent: Dart pub 2.7.0
[ +260 ms] IO : HTTP error:
[ +1 ms] | HandshakeException: Handshake error in client (OS Error:
[ ] | CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:354))
[ ] |
[ ] | dart:_http _HttpClient.openUrl
[ ] | package:http/src/io_client.dart 33:36 IOClient.send
[ ] | package:pub/src/http.dart 68:39 _PubHttpClient.send
[ ] | package:http_retry/http_retry.dart 97:33 RetryClient.send
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async _asyncThenWrapperHelper
[ ] | package:http_retry/http_retry.dart RetryClient.send
[ ] | package:pub/src/http.dart 194:43 _ThrowingClient.send
[ ] | package:http_throttle/http_throttle.dart 33:31 ThrottleClient.send
[ ] | ===== asynchronous gap ===========================
[ ] | dart:async
运行 flutter pub get --verbose 会出现以下错误：
[ +259 ms] IO : HTTP error:
[ +2 ms] | HandshakeException: Handshake error in client (OS Error:
[ ] | CERTIFICATE_VERIFY_FAILED: unable to get local issuer certificate(handshake.cc:354))
这可能是因为公司防火墙或证书，但我不确定这里需要做什么。我曾经能够在同一环境中的旧笔记本电脑上正常运行颤振。现在我有一台新笔记本电脑，所以不确定发生了什么变化。
感谢您对此的任何帮助。阿里
解决方案
问题解决了。Symantaic Endpoint Protection 配置为使用 blue coat 代理，并且还安装了统一代理。因此，他们似乎彼此冲突。删除统一代理后，现在我不再收到该错误。
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