运行Flutter项目的android Studio问题

在几个月前进行更新之后，就无法再在虚拟或物理设备上运行Flutter项目。出现以下故障消息：

Launching lib\main.dart on sdk gphone x86 arm in debug mode...
Running Gradle task 'assembleDebug'...
Checking the license for package Android SDK Build-Tools 28.0.3 in C:\Users\****\AppData\Local\Android\sdk\licenses
Warning: License for package Android SDK Build-Tools 28.0.3 not accepted.
Checking the license for package Android SDK Platform 29 in C:\Users\****\AppData\Local\Android\sdk\licenses
Warning: License for package Android SDK Platform 29 not accepted.

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
Failed to install the following Android SDK packages as some licences have not been accepted.
     build-tools;28.0.3 Android SDK Build-Tools 28.0.3
     platforms;android-29 Android SDK Platform 29
  To build this project, accept the SDK license agreements and install the missing components using the Android Studio SDK Manager.
  Alternatively, to transfer the license agreements from one workstation to another, see http://d.android.com/r/studio-ui/export-licenses.html

  Using Android SDK: C:\Users\****\AppData\Local\Android\sdk

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 9s
Exception: Gradle task assembleDebug failed with exit code 1

我该怎么解决这个问题？我提前谢谢你。