我在项目Flutter中有一个错误，我不知道如何修复它。当我命令flutter pub get run时发生此错误
错误：
SLVR：衍生：json_annotation ^4.4.0 SLVR：conflict：package_base 1.22.025 + 9 depends on package_context ^1.21.353 + 4 SLVR：! package_base 1.22.025 + 9被not package_base部分满足
1.22.025 + 9 <2.0.0 SLVR：!这是由于"没有版本的package_base匹配> 1.22.025 + 9 <2.0.0" SLVR：!因此：package_base ^1.22.025 + 9需要package_context ^1.21.353 + 4 SLVR：! package_base ^1.22.025 + 9满足package_base ^1.22.025 + 9 SLVR：!这是由"package_identity depends on package_base ^1.22.025 + 9" SLVR引起的：!因此：package_context ^1.21.353 + 4是必需的SLVR：! not package_context ^1.21.353 + 4满足package_context ^1.21.353 + 4 SLVR：!这是由"package_identity depends on package_context ^1.21.353 + 4" SLVR引起的：!因此：版本解析失败SLVR：版本解析耗时0：00：04.357063秒。|已尝试% 1个解决方案。FINE：解析依赖关系完成（4.4秒）。错误：因为package_base 1.22.025 + 9依赖于package_context ^1.21.353 + 4，并且没有package_base的版本匹配> 1.22.025 + 9 <2.0.0，所以package_base ^1.22.025 + 9需要来自托管在http://2.1.2.9:500/[token]/上的package_context。|因此，由于package_identity依赖于托管在http://2.1.2.9:500/[token]/上的package_base ^1.22.025 + 9和package_context，因此版本解析失败。FINE：异常类型：解决故障精细：软件包：pub/src/solver/version_solver. dart 312：5 VersionSolver._resolveConflict| package：pub/src/solver/version_solver. dart 133：27 VersionSolver._propagate|软件包：pub/src/solver/version_solver. dart 97：11 VersionSolver.solve。|=====异步间隙===================================================================================================================================================================================================================================================| dart：async Future. catchError| package：pub/src/utils. dart 109：52 captureErrors. wrappedCallback| package：stack_trace Chain. capture| package：pub/src/utils. dart 122：11捕获错误|package：pub/src/command. dart 180：13 www.example.com PubCommand.run package：pub/src/command_runner. dart 173：24 www.example.com命令|package：pub/src/command_runner. dart 158：20 PubCommandRunner.run| package：dartdev/dartdev. dart 45：56 runDartdev PubCommandRunner.run- ---结束日志记录----）结果附件将存储在LogStore中运行附件将存储在LogStore中未找到要发布的结果“D：\a\1\s\junit.xml”。|##[error]部分测试失败| package:dartdev/dartdev.dart 45:56 runDartdev | C:\b\s\w\ir\cache\builder\sdk\pkg\dartdev\bin\dartdev.dart 11:9 main ---- End log transcript ---- pub get failed (1; ---- End log transcript ----) Result Attachments will be stored in LogStore Run Attachments will be stored in LogStore No Result Found to Publish 'D:\a\1\s\junit.xml'. ##[error]Some tests failed
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Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.8.0, on Microsoft Windows [Version 10.0.19044.1466], locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses
[√] Chrome - develop for the web
[√] Android Studio (version 2020.3)
[!] Android Studio (version 4.1)
    X Unable to determine bundled Java version.
[√] VS Code (version 1.63.2)
[√] Connected device (2 available)

! Doctor found issues in 2 categories.