I have seen similar issues but they somehow could not resolve my issue. I am currently using Windows and Versions Java 8, Java SDK 13.0.1, Android Studio v3.5.2.
1) I First typed flutter doctor
and got the following error: Android license status unknown.
2) I then entered flutter doctor --android-licenses
and got the following command
A newer version of the Android SDK is required. To update, run:
C:\Users\user\AppData\Local\Android\sdk\tools\bin\sdkmanager --update
3) Running this line I ended up here:
D:\flutter\flutter>C:\Users\user\AppData\Local\Android\sdk\tools\bin\sdkmanager --update
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 5 more
Please let me know the simple steps i could follow as I am confused about this a lot!
To resolve, try running flutter doctor --android-licenses
. This should prompt you to accept licenses just type y and enter to accept the licence if error persists check out this issue
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