Failed to update Android SDK package list error when using SDK installed with unity.

Failed to update Android SDK package list error when using SDK installed with unity.

Code (CSharp):

1. CommandInvokationFailure: Failed to update Android SDK package list.
2. F:/Programs/Unity/2019.2.0f1/Editor/Data/PlaybackEngines/AndroidPlayer\SDK\tools\bin\sdkmanager.bat --list
3.  
4. stderr[
5. Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
6.     at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
7.     at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
8.     at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
9.     at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
10.     at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
11. Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
12.     at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
13.     at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
14.     at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
15.     ... 5 more
16. ]
17. stdout[
18.  
19. ]
20. exit code: 1
21. UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <8277255796414cc8b8865316c1676de5>:0)
22. UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <8277255796414cc8b8865316c1676de5>:0)
23. UnityEditor.Android.SDKManager.UpdatePackagesList () (at <8277255796414cc8b8865316c1676de5>:0)
24. UnityEditor.Android.SDKManager.ListAvailable (UnityEditor.Android.SDKManager+Component type) (at <8277255796414cc8b8865316c1676de5>:0)
25. UnityEditor.Android.PlayerSettingsEditorExtension.<StartGettingReleasedAPILevels>m__0 () (at <8277255796414cc8b8865316c1676de5>:0)
26. System.Threading.ThreadHelper.ThreadStart_Context (System.Object state) (at <a8ed250850854b439cedc18931a314fe>:0)
27. System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) (at <a8ed250850854b439cedc18931a314fe>:0)
28. System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) (at <a8ed250850854b439cedc18931a314fe>:0)
29. System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state) (at <a8ed250850854b439cedc18931a314fe>:0)
30. System.Threading.ThreadHelper.ThreadStart () (at <a8ed250850854b439cedc18931a314fe>:0)
31. UnityEngine.UnhandledExceptionHandler:<RegisterUECatcher>m__0(Object, UnhandledExceptionEventArgs)

Unity 2019.2.0f1 and Hub 2.0.4.



Edit: Nevermind, fixed by removing my other java install from java home and path.

 

Good day.
I faced the same problem.
Did you manage to find a solution?

 

Yeah, as I said in the OP, I removed java_home and the java path from my environment variables, (just deleted them, I did not add a new one).

 

You may need to install Java8. The Android SDK refers to the system's JDK ...
Perhaps the currently installed JDK is 11 or 12, so it is quick to remove it.
However, to install Oracle Java8, you need to register an account, and using Open JDK may be easier.

https://azul.com/downloads/zulu/

I really want to use the JDK bundled with Unity. Is there a good way?

 

Yes.

 

Hi,
What does it mean to remove java_home and the java path from environment variables?

 

Same. Some articles say remove environment variables.. some say add them... working with unity and mobile is just always a nightmare.

 

On Windows, java uses an environment variable, one named JAVA_HOME and it also might use the Path variable to find the java binaries.

https://docs.oracle.com/en/database...tml#GUID-DD6F9982-60D5-48F6-8270-A27EC53807D0

New Unity comes bundled with Java so it shouldn't need any external java "stuff".
Removing them should fix any java issues, as long as you choose to install and use the bundled java.

However there is another bug on unity that leaves some path bars inverted and apparently this bugs the java usage.

https://forum.unity.com/threads/java-9-jdk-9-support-by-unity-android.499354/page-3#post-5724547

So I now just use a script to fix this stuff automatically...

Code (CSharp):

1. string newJDKPath = EditorApplication.applicationPath.Replace("Unity.exe", "Data/PlaybackEngines/AndroidPlayer/OpenJDK");
2.  
3.         if (Environment.GetEnvironmentVariable("JAVA_HOME") != newJDKPath)
4.         {
5.             Environment.SetEnvironmentVariable("JAVA_HOME", newJDKPath);
6.         }

Put in on a static constructor on a class marked with [InitializeOnLoad] on the Editor folder of your project.

 

I set the variable as in the next link. Worked for me.
https://confluence.atlassian.com/doc/setting-the-java_home-variable-in-windows-8895.html

 

Hey everybody, i have the same error on my windows10, and installed android studio latest version, I set android studio SDK path to unity android sdk path, and it is solved.

 

Hi, I had the same problem and solved it as follows: 1. I uninstalled my previous version of Java. 2. Installed Java 8
(Java SE Development Kit 8u251). 3. Copied the path to my environment settings in Settings/Environment settings. Moved it up in the hierarchy 4. Also added JAVA_HOME path to the environment settings. 5, IMPORTANT Went to Unity: Edit/Preferences/External Tools.
6. Here I unticked the following boxes under ANDROID: (a) JDK installed with Unity (Recommended) and browsed to where Java is stored (C:\Program Files\Java\jdk1.8.0_251) (b) Did the same with SDK. 7. MAGIC!

 

I had same issue on Mac after previously making build without an issue. I uninstalled current Unity version ( 2019.3.4 ) through Unity Hub and installed new version ( 2019.3.14 ). If you have same issue, try to reinstall Unity version.

 

We are using Unity 2019.3.12f1 and I'm getting this same issue on a Mac. We can't update our project yet at the moment to a newer version of Unity. Does Unity have an official workaround for this? Is it actually fixed in a newer version of Unity?
Thanks.

 

Hey, I had the same issue on Ubuntu18.04. Yesterday I was able to build the Android apk but today I was not able anymore.
I fixed it exporting the JAVA_HOME environment variable (pointing to Unity Java SDK installation) and appending the Java executable to the PATH environment variable:

Code (JavaScript):

1. export JAVA_HOME=/home/leofaber/Softwares/unity/editors/2019.3.14f1/Editor/Data/PlaybackEngines/AndroidPlayer/OpenJDK
2. export PATH=$JAVA_HOME/bin:$PATH

 

fixed by unchecking all checboxes bellow and check them again
P.S : you find it in unity under Edit -> Preferences -> External Tools

 

I had this problem too, seemingly out of nowhere. My Android game compiled one night and the next it didn't. I did enable the keystore for it, maybe that caused it?

But I uninstalled Java (I had v13 I believe) and re-installed JDK v8. I also added the JAVA_HOME environment variable since it wasn't there (following Yerbol05's link above) after installation. I then went into Unity -> Edit -> Preferences -> External Tools, unchecked the Unity Open JDK, and specified the Java installation directory (C:\Program Files\Java\jdk1.8.0_251).

My game then compiled. I was thinking it was due to some Android SDK issue, cause of the error message, but it seems to have been Java (for whatever reason).

 

can you upload video? because i have the same problem but I don't understand

 

Hi. i had same problem and i solved.
i remove my JAVA_HOME variable but it doesn't change any thing.
i have unity 2019.4(lts) and java 8 and updated SDK and i added java_home in my variables. i download a another version of JDK and SDK and put them in unity! and i try to build, and my error fixed. now i back my jdk and sdk and try to build again and its work!

 

This is the one!! Simple as can be...

 

Thank you, It works for me on MacOS 10.15.5 (19F101) Unity 2019.3.14f1

 

Thank you so much, It works for me Unity 2019.4.5f1

 

Had both problems, Java, home variables, path variables, untick box's and retick, ALL WORKED but, now it's not fixing it with anything that i do of the above, This seems to be some sort of stupid unity issue and not java..

 

Ok so I just found out what's happening, Unity seems to be ignoring the last "/", edit the JDK location string add / at the end of it.
So now it looks like
C:/Program Files/Unity/Editor/2019.4.4f1/Editor/Data/PlaybackEngines/AndroidPlayer/OpenJDK/

 

Oh my gosh...

 

cool working now ty .

 

I can't believe this was the problem I've been having. Thank you!

 

worked for me as well

 

It seems that Enumerator_T was completely right! I was fed up by unchecking and checking! This perfectly worked!

 

Worked for me

 

I am having the same issue... This solution did NOT work for me even though it has worked in the past. Using 2019.4.9

 

This seems to have fixed it. For me the problem arose when switching from iOS to Android after having added 2 new (Firebase) packages to the project.

If this resetting is the issue, it seems that whatever trigger it flips should be done automatically when switching between platforms.

 

Remove tick and select again.

 

this worked for me! thanks

 

Worked for me, Thanks!

 

This worked for me thanks you.

 

It's worked for me.. Thank you...

 

Updating the $JAVA_HOME env variable fixed it for me.

Instructions for MacOS:

NOTE: replace `2019.4.13f1` with your version of Unity.

1. Add the following lines to `~/.bash_profile`
export JAVA_HOME=/Applications/2019.4.13f1/PlaybackEngines/AndroidPlayer/OpenJDK
export PATH=$PATH:$JAVA_HOME

2. Uncheck then recheck all the boxes under `Edit -> Preferences -> External Tools`

 

Thanks, it's worked for me!

 

Awesome! I've spent hours troubleshooting this, so I'm glad it helped

 

This helps me. I've just uncheck boxes and has add "/" at the end of the lines.
I've spent a week trying to compile my project and has an Android SDK package list error.
Unity team, damn, are you kidding us ?

 

Same, adding "/" to the end of the JDK path on mac fixed the issue for me.

 

Noice Man It Worked Thanks

 

My solution (2-minutes guide) to this problem, hope that it will be helpful.

 

Thank you so much! You just saved me hours of time trying to debug this. "Turn it off and turn it on again" works again!

 

The problem is, I have been seeing the bug described above for a few weeks now, and it reappears every time I open the project. So I have to uncheck, wait for resolver to fill, recheck, wait for resolver to fill every time I restart my mac (and open the project again). Same procedure as in above video, just on a daily basis.
There is clearly an issue in `Unity/Hub/Editor/2020.2.0f1/PlaybackEngines/AndroidPlayer/SDK/tools/bin/sdkmanager` that should be fixed by Unity.

 

I agree with you. Same happening with me. Please unity check this issue

 

This seriously helped me so much. I'm on macOS Catalina 10.15.7, using Unity 2019.2.7f2, and was having the same 'failed to update Android SDK' issues, after trying multiple things including downloading another version of Java, NDK, and a fresh uninstall/ reinstall of Unity through the Hub.

Opened the .profile file ('cmd + shift + .' from personal User directory to view hidden files) in Visual Studio Code, and added those lines for the JAVA_HOME. Obviously I had to change the root path for the Mac, but instead of going from 'AndroidPlayer/OpenJDK' I had to go from 'AndroidPlayer/Tools/OpenJDK/MacOS'.

Once I saved that, I wend to Unity>Preferences>ExternalTools, unchecked all the Android check boxes, clicked browse for every one that asked for it, then checked all the check boxes again.

Finally built after days of pixelated android tears...

 

Thank you, this really helped.

 

I tried that too, it still didn't work. I still have to go to `Edit -> Preferences -> External Tools` and uncheck/recheck the checkmarks every time I open the project. This is a really annoying bug, please Unity Team, look into this problem.

 

Problem fixed here :