Flutter io Android License Status Unknown

Question

Android toolchain - develop for Android devices  Android SDK 27 0 3   gt  gt     Android SDK a    Android sdk     Android NDK location not configured  optional  useful for native profiling support      Platform android-27  build-tools 27 0 3     Java binary at C  Program Files Android Android Studio jre bin java     Java version OpenJDK Runtime Environment  build 1 8 0 152-release-1024-b02  X Android license status unknown   I am getting an error with Android SDK when I run Flutter doctor  although I can still build run it on my device  I was just curious about how to fix this issue  I believe I have the most updated version of the Android SDK downloaded  not sure what happened because I didn t have this issue last week    New Issues After following several possible fixes in the comments it has led to a new problem  I installed newer versions of android sdk P  8  and 7 along with a new jdk10  Still not updated enough apparently  C  Flutter flutter gt flutter doctor --android-licenses A newer version of the Android SDK is required  To update  run  C  Users tdmil AppData Local Android sdk tools bin sdkmanager --update  C  Flutter flutter gt C  users username appdata local android sdk tools bin sdkmanager bat --update Exception in thread  quot main quot  java lang NoClassDefFoundError  javax xml bind annotation XmlSchema         at com android repository api SchemaModule SchemaModuleVersion  lt init gt  SchemaModule java 156          at com android repository api SchemaModule  lt init gt  SchemaModule java 75          at com android sdklib repository AndroidSdkHandler  lt clinit gt  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

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MacOS 10 15  Android Studio 3 5 1   The solution that works for me was to use the Java Environment tool jenv  installed via homebrew   This tool changes the  JAVA HOME when one switches between java versions    In my case I have multiple Java versions installed and the current global version in use was the default  I also found it necessary to comment out the  JAVA HOME environment variable in my  bash profile when using this tool   In Terminal  I entered jenv global 1 8 to get java 1 8 running instead of a later version  I have multiple versions installed     After that   flutter doctor --android-licenses   OR   sdkmanager --licenses   both work fine      Note  You may need to exit and reopen your Terminal shell if you have   to redefine the  JAVA HOME environment variable

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For those of you who are on Linux and keep getting errors during flutter doctor --android-licenses   I kept getting the could not create settings warning when trying to accept licenses  which I fixed by specifying SDK location   sdkmanager --sdk root  home adel bin android-sdk --licenses   Sdkmanager then printed  all SDK package licenses accepted   However Flutter kept giving the android license status unknown error  And attempting to call flutter doctor --android-licenses would give me the same could not create settings error I used to get   To fix this I edited the sdkmanager script located in   your android tools location  tools bin  and changed the last line from   exec   JAVACMD         To   exec   JAVACMD       --sdk root  home adel bin android-sdk   This would make Flutter call sdkmanager while passing the needed sdk root argument  a final call to flutter doctor --android-licenses fixed the issue   I did not have to use Java 8

User · Answer

I downgraded my Java version to 1 8 and its resolved  here is the link to download JDK8  Run the following command after installing JDK8     flutter doctor --android-licenses

User · Answer

Here are the steps that solve my problem    Open your terminal type flutter doctor --android-licenses press y to accept  this process may occurred several times  Done

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Follow these simple steps   go to tools  then SDK manager  then click on android SDK  click SDK update sites tab  check the checkbox that states https     sources to be fetched using https     click apply and ok  Now restart android studio  go to SDK tools and check the checkbox that states Hide obsolete packages  wait for about a minute or so for the packages appear  then select a package called  quot android SDK tools  obsolete   and press okay  continue to install the package  after installation restart android studio and also restart cmd  then run flutter doctor  it will take a couple of minutes and it should work

User · Answer

here is my solution    install SDKMan    curl -s  https   get sdkman io    bash setting your bash profile    source   HOME  sdkman bin sdkman-init sh    source    bash profile find java sdk  and select want to install version    sdk ls java    sdk install java 8 0 192-zulu copy your flutter doctor warning message to update sdkmanager     Users YourUserName Library Android sdk tools bin sdkmanager --update after 1 4  redo it     flutter doctor --android-licenses

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This line provided on GitHub issue community fixed my problem  here it is just in case it helps anyone else    rem Execute sdkmanager    JAVA EXE    DEFAULT JVM OPTS  -XX  IgnoreUnrecognizedVMOptions --add-modules java se ee  JAVA OPTS   SDKMANAGER OPTS  -classpath   CLASSPATH   com android sdklib tool sdkmanager SdkManagerCli  CMD LINE ARGS

User · Answer

Here s what I did to fix my issue  Please note that  you don t have to uninstall your old copy of Android Studio SDK  Android Studio will take care of that whilst you are installing the latest version    Downloaded  amp  install the latest version of Android Studio Follow the instructions in this tutorial Once the installation is complete  run flutter doctor and check  your issue should have been resolved  If the issue is resolved  there s no need to run the flutter doctor --android-licenses command

User · Answer

The right solution would be if you have android studio installed then   open SDK manager under SDK tools uncheck hide obsolete packages at the bottom then you should see an option called Android SDK Tools  Obsolete       check it and apply and let the studio download the package  once done run the command flutter doctor and it should now prompt you to run flutter doctor --android-licenses once you run the license command accept all licenses by hitting y and it should solve the problem

User · Answer

I am writing this because of the frustration in installing flutter     Most issues are caused by simple configuration issues  Follow these steps to resolve your issues   STEP 1 ANDROID LICENSES    --android-licenses  will resolve most cases  Since you are here you have reached  Android License Status Unknown  issue for Android tool chain as many suggested tryflutter doctor --android-licenses  If you are good with all the config  It should ask for an yes and press y and Voila  But if it shows a   Android sdkmanager tool not found  C Users    local Android sdk tools bin sdkmanager   Go to step two  STEP 2  SDK Manager installation from Android Studio  Open your Android Studio   File- gt  settings- gt System settings left tab  - gt Android SDK  go to SDK Tool section in that page  untick hide obsolete packages  select Android SDL tools obsolete  and press apply    It will install the SDK and you confirm it by going  and checking if this path exists C Users    local Android sdk tools bin sdkmanager   STEP 3  Repeat 1  Repeat step 1 after installation in a new command line check if its working   else go to STEP 4  STEP 4  sdkmanager --update  It will ask you update the sdk  just run the command given in terminal  C Users    local Android sdk tools bin sdkmanager --update  If it is running  then its cool  let it finish and repeat step 1  else if it is throwing some exceptions like java lang NoClassDefFoundError  javax xml bind annotation XmlSchema etc    it means your java is not installed or not the correct version  Go to next step  STEP 5  JAVA 8 1 and JAVA HOME path   Install JAVA 8 1 and set JAVA HOME path  Make sure it is version 8 1 register free account and download from oracle the 8 1 version  remember above 11  wont work for flutter   NOTE  by yaniv maymon  if you already have Java installed on your computer and the sdkmanager --update still not working  go the environment variable and update the  JAVA HOME  path to jdk folder  then exit the command prompt  open it again and run the update command       STEP 6  Final Step  After installing and setting up path properly  run theC Users    local Android sdk tools bin sdkmanager --update command in new terminal and it will work  STEP 7  Rerun flutter doctor   You can see it saying to run the command flutter doctor --android-licenses   so run flutter doctor --android-licenses  in terminal and press y when asked

User · Answer

Try downgrading your java version  this will happen when your systems java version isn t compatible with the one from android  Once you changed you the java version just run flutter doctor it will automatically accepts the licenses

User · Answer

If you updated the android SDK  the licenses may have changed  Depending on how you did the update you may or may not have been prompted to accept the changes  or maybe it just doesn t save the fact that you did accept them in a way flutter can understand   To resolve  try running   flutter doctor --android-licenses   This should prompt you to accept licenses  it may ask you first  in case just type y and press enter - although it should tell you that    If you still have problems after doing that  it might be worth either opening a new bug in the Flutter Github repository  or adding a comment on an existing issue like this one as it may be what you re seeing

User · Answer

In my case the issue was missing Android SDK Command-line tools

User · Answer

I was facing issue  The tools folder was also missing from the Android SDK folder  I believe tools folder appears only after installing Android SDL tools obsolete   This option was not available for me   Solution  I upgraded the Java from version 8 to version 12 and I was able to install the tools  You may still get the error Some Android licenses not accepted   To resolve this  run  flutter doctor --android-licenses while giving the command flutter doctor -v  Run the command flutter doctor --android-licenses  the licences will be reviewed when you click yes every time this question appears Accept   y N    Hopefully it will help someone

User · Answer

I found this solution for having to use JDK 8  you need an account to download now   - use the embedded OpenJDK that comes with Android Studio   Add this to your    profile or similar     Use the JDK embedded with Android Studio for command-line builds export JAVA HOME   Applications Android Studio app Contents jre jdk Contents Home    Command-line builds via gradlew  and any other well-behaved script  will then use the version of the SDK that ships with Android Studio 2 2     My Mac was still using the default Java 7

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If you use homebrew cask  you can do  brew cask install android-sdk mkdir   Library Android sdk tools ln -s  usr local bin    Library Android sdk tools bin flutter doctor --android-licenses

User · Answer

After doing lots of analysis for my Ubuntu 20 04 I have found the solution for me the error was  home rk Android Sdk tools bin sdkmanager was missing write permission   chmod  w home rk Android Sdk tools bin sdkmanager  Then run the below command   flutter doctor --android-licenses  it automatically process the licences

User · Answer

The error  Exception in thread  quot main quot  java lang NoClassDefFoundError  javax xml bind annotation XmlSchema         at com android repository api SchemaModule SchemaModuleVersion  lt init gt  SchemaModule java 156          at com android repository api SchemaModule  lt init gt  SchemaModule java 75          at com android sdklib repository AndroidSdkHandler  lt clinit gt  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  is occurring because the current SDK version is incompatible with Java 9  So  to solve it  you can downgrade your java version to Java 8  or with a workaround  you can export the following option on your terminal  Linux  export JAVA OPTS  -XX  IgnoreUnrecognizedVMOptions --add-modules java se ee   Windows  set JAVA OPTS  -XX  IgnoreUnrecognizedVMOptions --add-modules java se ee   And to make it stick  you can export the JAVA OPTS in your profile file on Linux   zshrc   bashrc and etc   or add as an environment permanently on Windows   Then  you can type the flutter or sdkmanager command  Flutter  flutter doctor --android-licenses  sdkmanager  sdkmanager --licenses  and type Y when needed to accept the licenses  ps  This doesn t work for Java 11 11   which doesn t have Java EE modules  For this option is a good idea  downgrade your Java version or wait for a Flutter update  Ref  JDK 11  End of the road for Java EE modules

User · Answer

For Windows people a short term solution is to downgrade to JDK8  Hopefully flutter will fix the issue soon for Android SDK to be working with  gt JDK8

User · Answer

I found this solution I download JDK 8 Then I add downloading jdk file path name of JAVA HOME into user variables in environment variable

User · Answer

open the flutter console bat file from the flutter SDK root folder and run the command  flutter doctor --android-licenses   it will accept the licenses of newly downloaded updates of Android SDK  You need to run it every time whenever you download and update the Android SDK

User · Answer

Refer--https   robbinespu gitlab io blog 2020 03 03 flutter-issue-fixed-android-license-status-unknown-on-windows   So here the solution  open your SDK manager then uncheck Hide Obsolete Packages    Now you   ll see Android SDK Tools  Obsolete  26 1 1 appears  Tick that package and hit apply button then ok button  it will download sdk  then restart Android studio  Nice  now if you run flutter doctor  you should get positive result as below  PS D  Workplace flutter projects gt  flutter doctor Doctor summary  to see all details  run flutter doctor -v    v  Flutter  Channel stable  v1 12 13 hotfix 8  on Microsoft Windows  Version 10 0 18363 657   locale en-MY    v  Android toolchain - develop for Android devices  Android SDK version 29 0 3   v  Android Studio  version 3 6   v  VS Code  version 1 42 1   v  Connected device  1 available       No issues found   PS D  Workplace flutter projects gt  flutter doctor --android-licenses -v All SDK package licenses accepted         100  Computing updates      Run flutter doctor --android-licenses and enter Y when is asked  if needed we can download package manually here https   dl google com android repository sdk-tools-windows-4333796 zip  for Windows user   Hope this tutorial help people who looking for solution

User · Answer

For someone who is still facing the issue  As answered below by Tommie C  Aba and few other people  but may not be clear enough as I found it  Try installing java 1 8 manually as described here on windows linux   https   www3 ntu edu sg home ehchua programming howto JDK Howto html  and setting  JAVA HOME variable jdk path    On windows set jdk path  JAVA HOME     How to set java home on Windows 7   On linux   https   askubuntu com questions 175514 how-to-set-java-home-for-java   Then run flutter doctor --android-licenses and accept all the licenses  Hope it helps

User · Answer

Open Android Studio  Go to File- Settings   Search for AndroidSDK  Update your API Level to latest version   Then reload Android Studio

User · Answer

Just install the sdk command line tool latest  the below in android studio

User · Answer

My environment   Windows 10 64bit  OpenJDK 14 0 2 Initial errors are as reported above  Error was resolved after  Replaced  quot C  lt installation-folder gt  openjdk-14 0 2 windows-x64 bin jdk-14 0 2 quot  with  quot  C  Program Files Android Android Studio jre  quot  in environment variable PATH  amp  JAVA HOME ran flutter doctor --android-licenses and selected y for the prompts

User · Answer

WARNING  This answer is useful if you have problems with JAVA HOME environmental variable and the direction of that  If you do not have this problem  you should not try this solution   If you have this error and you tried with flutter doctor --android-licenses or sdkmanager --licenses and you got a problem with your JAVA HOME environmental variable  then you have to read this   I have a MacOS Catalina ant I could resolve this problem successfully with the next steps    Open your terminal Type  open -e  bash profile  You should see almost two environmental variables  flutter and JAVA HOME  Save JAVA HOME environmental variable written there in a textEdit file if you wish and DELETE the JAVA HOME environmental variable  Save the bash profile  Go to terminal again and run source  HOME  bash profile Try again flutter doctor and you shouldn t see the same error any more    Please  let me know if you have doubts

User · Answer

Same problem to me  check your java version at least it must be 1 8

User · Answer

I faced the same problem  like mentioned above I tried these    Installed JDK 1 8 and set my JAVA HOME env to 1 8 - This did not work My Android studio didn t show any  Android SDK Tools  Obsolete   but had had an  Android SDK Tools    This is what worked for me    Delete the  Android SDK Tools  from SDK Manager Reinstall it by first deselecting the  Hide Obsolete Packages  and then select  Android SDK Tools  Obsolete    install it  run flutter doctor --android-licenses and select y for the prompts run flutter doctor and everything will be fine

User · Answer

This was also my issue same as  16025  For an Exception in thread  main  java lang NoClassDefFoundError  javax xml bind annotation XmlSchema  This issue seems usually happens when you ve installed Java 9 before  BTW it s not compatible with android-sdk try to remove Java 9 JDK if still exist       In general JAXB APIs are considered to be Java EE APIs  and therefore   are no longer contained on the default class path in Java SE 9    Java   9 introduces the concepts of modules  and by default the java se   aggregate module is available on the class path  or rather  module   path   As the name implies  the java se aggregate module does not   include the Java EE APIs that have been traditionally bundled with   Java 6 7 8    Fortunately  these Java EE APIs that were provided in   JDK 6 7 8 are still in the JDK  but they just aren t on the class path   by default  The extra Java EE APIs are provided in the following   modules   Solution to workaround if you have Java9 10 installed    Open sdkmanager in your editor  Append DEFAULT JVM OPTS    Replace  DEFAULT JVM OPTS   -Dcom android sdklib toolsdir  APP HOME     With this one  DEFAULT JVM OPTS   -Dcom android sdklib toolsdir  APP HOME  -XX  IgnoreUnrecognizedVMOptions --add-modules java se ee     Save the file and quit the editor then try run the command again    For Android license status unknown issue  I ve tried to solve by these steps    Open a terminal Go to your Android SDK location C  Users user  AppData Local Android Sdk tools bin or   Library Android sdk tools bin Run the command    sdkmanager --license   References  Failed to run sdkmanager --list  Android SDK  with Java 9  How to resolve java lang NoClassDefFoundError  javax xml bind JAXBException in Java 9

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