“Failed to install the following Android SDK packages as some licences have not been accepted” error

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I am getting this error in jitpack, I’ve tried everything on the internet. Below is my error 

Failed to install the following Android SDK packages as some licences have not been accepted.
     platforms;android-26 Android SDK Platform 26
     build-tools;28.0.3 Android SDK Build-Tools 28.0.3
  To build this project, accept the SDK license agreements and install the missing components using the Android Studio SDK Manager.

And when i run ./sdkmanager –licenses

 All SDK package licenses accepted.======] 100% Computing updates...

Using sudo with the above command gives 

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
    at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
    at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
    at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
    ... 5 more

additional error log 

File /opt/android-sdk-linux/.android/repositories.cfg could not be loaded.
Checking the license for package Android SDK Build-Tools 28.0.3 in /opt/android-sdk-linux/licenses
Warning: License for package Android SDK Build-Tools 28.0.3 not accepted.
Checking the license for package Android SDK Platform 26 in /opt/android-sdk-linux/licenses
Warning: License for package Android SDK Platform 26 not accepted.

I don’t know why it’s checking for licenses there when my sdk location is other

31 Answers
31

You need to accept the licences before building.

According to Android SDK docs you can use the following command depending on the sdkmanager location: Docs on --licenses option seems to be missing though.

yes | sdkmanager --licenses

GNU/Linux Distributions:

yes | ~/Android/Sdk/tools/bin/sdkmanager --licenses

macOS:

export JAVA_HOME=/Applications/Android\ Studio.app/Contents/jre/jdk/Contents/Home
yes | ~/Library/Android/sdk/tools/bin/sdkmanager --licenses

Windows:

%ANDROID_HOME%/tools/bin/sdkmanager --licenses

Flutter:

> flutter doctor --android-licenses

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