I am getting this errors "cmdline-tools component is missing" after installing flutter and android studio... i added andorid sdk. how to solve them?

The solution for me was opening Android Studio and going to Sdk Manager, switch to SDK Tools tab and check Android SDK Command-line Tools(latest)

Don't forget to add to your PATH the tools and platform-tools folder that are inside your Sdk

Android SDK Manager Screenshot on Windows

Please see attached screenshot for installing tools from SDK Manager.

My solution process is as follows:

1. % ~/Library/Android/sdk/tools/bin/sdkmanager --install "cmdline-tools;latest"

   Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636)    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182)    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)    ... 5 more

2. Install Android SDK Command-line Tools in Android Studio:

   Preferences > Appearance & Behavior > System Settings > Android SDK > SDK Tools > Android SDK Command-line Tools (latest)

3. % flutter doctor

   Doctor summary (to see all details, run flutter doctor -v):[✓] Flutter (Channel stable, 2.5.0, on macOS 11.5.2 20G95 darwin-x64, locale zh-Hans-CN)[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)[✓] Xcode - develop for iOS and macOS[✓] Chrome - develop for the web[✓] Android Studio (version 2020.3)[✓] IntelliJ IDEA Ultimate Edition (version 2021.2)[✓] IntelliJ IDEA Ultimate Edition (version 2021.2)[✓] Connected device (2 available)• No issues found!