运行“flutter doctor --android-licenses”时如何解决？

Question

When I run flutter doctor --android-licenses I got error below:

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
        at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
        at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
        at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
        at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        ... 5 more

How do I fix it? Thanks!

Answer 1

Replacing OpenJDK 11 with OpenJDK 8 currently fixes the problem for me. For example:

sudo apt autoremove openjdk-11-*
sudo apt purge openjdk-11-*

sudo apt install openjdk-8-jdk openjdk-8-jdk-headless

Answer 2

In Linux use the below command

export JAVA_OPTS='-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee'

In case of Windows use the below one:

set JAVA_OPTS=-XX:+IgnoreUnrecognizedVMOptions --add-modules java.se.ee

Note:

This doesn't work for Java 11+ , which doesn't have Java EE modules. For this I recommend to downgrade your Java version or wait for a Flutter update .