flutter doctor 通不过

来源：3-3 Flutter开发环境与iOS开发环境设置（Mac）

诺巴蒂

2021-06-05

[✓] Flutter (Channel stable, 2.2.1, on macOS 11.4 20F71 darwin-x64, locale zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
✗ Android license status unknown.
Run flutter doctor --android-licenses to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.2)
[✓] VS Code (version 1.56.2)
[✓] Connected device (1 available)

Run flutter doctor --android-licenses 又报了新的错误

Exception in thread “main” java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule $S c h e m a M o d u l e V e r s i o n . < i n i t > (S c h e m a M o d u l e . j a v a : 156) a t c o m . a n d r o i d . r e p o s i t o r y . a p i . S c h e m a M o d u l e . < i n i t > (S c h e m a M o d u l e . j a v a : 75) a t c o m . a n d r o i d . s d k l i b . r e p o s i t o r y . A n d r o i d S d k H a n d l e r . < c l i n i t > (A n d r o i d S d k H a n d l e r . j a v a : 81) a t c o m . a n d r o i d . s d k l i b . t o o l . s d k m a n a g e r . S d k M a n a g e r C l i . m a i n (S d k M a n a g e r C l i . j a v a : 73) a t c o m . a n d r o i d . s d k l i b . t o o l . s d k m a n a g e r . S d k M a n a g e r C l i . m a i n (S d k M a n a g e r C l i . j a v a : 48) C a u s e d b y : j a v a . l a n g . C l a s s N o t F o u n d E x c e p t i o n : j a v a x . x m l . b i n d . a n n o t a t i o n . X m l S c h e m a a t j a v a . b a s e / j d k . i n t e r n a l . l o a d e r . B u i l t i n C l a s s L o a d e r . l o a d C l a s s (B u i l t i n C l a s s L o a d e r . j a v a : 581) a t j a v a . b a s e / j d k . i n t e r n a l . l o a d e r . C l a s s L o a d e r s$ AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
… 5 more