Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" within flutter

Question

the problem with android licenses and when i tried fixing it the problem was in java

when I typed flutter doctor

[√] Flutter (Channel stable, 3.7.1, on Microsoft Windows [Version 10.0.22621.1105], locale en-US)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[!] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
    X Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[√] Chrome - develop for the web
[√] Visual Studio - develop for Windows (Visual Studio Community 2022 17.3.6)
[√] Android Studio (version 2022.1)
[√] VS Code (version 1.75.0)
[√] Connected device (3 available)
[√] HTTP Host Availability

! Doctor found issues in 1 category.

and when I typed flutter doctor --android-licenses this error appears Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" so can someone help:face_with_monocle: note :the java and javac on my pc are the same version

You have not accepted the licenses , may be launch it once in Android Studio and accept the license ( this is what i do ) and it will be all good. — Ahmad, Feb 05 '23 at 19:50

score 0 · Answer 1 · answered Feb 05 '23 at 18:16

0

run this command in the command prompt

flutter doctor --android-licenses

and type y and enter when you are asked. and as you mentioned you are getting error here is the solution for your error that is given at another question https://stackoverflow.com/a/31523756/14466860 check out this

answered Feb 05 '23 at 18:16

Munsif Ali

1,839
1
8
22

i dont use java iam installing flutter – sobhan allah101 Feb 05 '23 at 18:27
and the licenses doesn't work since this error of jdk – sobhan allah101 Feb 05 '23 at 18:27
check out you have installed java or not ? – Munsif Ali Feb 05 '23 at 18:30
that is needed for android sdk – Munsif Ali Feb 05 '23 at 18:30
I get the exact same error with `flutter doctor --android-licenses`: => `Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" java.lang.UnsupportedClassVersionError: com/android/prefs/AndroidLocationsProvider has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0`. Also, with `/usr/libexec/java_home -V` =>`Matching Java Virtual Machines (2)` `1.8.333.02 (x86_64)` and `1.8.0_111 (x86_64)` How do I fix it? Which do I remove & how – Pathros Feb 05 '23 at 19:01
i installed java i have jre and jdk – sobhan allah101 Feb 06 '23 at 14:11
the main problem that the flutter templates doesn't appears for me ,so i think its related to the android licenses – sobhan allah101 Feb 06 '23 at 14:12
run this command " java -version" in terminal and check what you are gettings – Munsif Ali Feb 06 '23 at 14:19
java -version java version "19.0.2" 2023-01-17 Java(TM) SE Runtime Environment (build 19.0.2+7-44) Java HotSpot(TM) 64-Bit Server VM (build 19.0.2+7-44, mixed mode, sharing) – sobhan allah101 Feb 06 '23 at 14:43
>javac -version javac 19.0.2 – sobhan allah101 Feb 06 '23 at 14:44
this what appears – sobhan allah101 Feb 06 '23 at 14:44
what is the main class of java as i don't use java or write code with it – sobhan allah101 Feb 06 '23 at 15:21
uninstall the old version install new that might help you. – Munsif Ali Feb 06 '23 at 15:24
i reinstalled java – sobhan allah101 Feb 06 '23 at 15:32
>java -version openjdk version "1.8.0_332" OpenJDK Runtime Environment (Temurin)(build 1.8.0_332-b09) OpenJDK 64-Bit Server VM (Temurin)(build 25.332-b09, mixed mode) C:\Users\User>javac -version 'javac' is not recognized as an internal or external command, operable program or batch file. – sobhan allah101 Feb 06 '23 at 15:32
but javac isnt recognized – sobhan allah101 Feb 06 '23 at 15:32
and no java folder was made – sobhan allah101 Feb 06 '23 at 15:35
watch i video and follow proper steps in installing i think you are making some mistakes in installation – Munsif Ali Feb 06 '23 at 16:07
i installed java with the same steps but the problem still there – sobhan allah101 Feb 06 '23 at 17:14
@Pathros, have you found solution to your issue? – Anatoly Feb 19 '23 at 12:47
run `/usr/libexec/java_home -V` and check which Java versions installed, remove the old versions and try run the command again, it should work. – Anatoly Feb 19 '23 at 13:05

score 0 · Answer 2 · answered Mar 11 '23 at 13:58

I started noticing these errors after upgrading to macOS 13. However I suspect they started after I upgraded to Android Studio Electric Eel (2022.1).

flutter doctor was reporting the following:

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel flutter-3.2-candidate.5, 3.3.3-0.0.pre.2, on macOS 13.2.1 22D68 darwin-x64, locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    ✗ Android license status unknown.
      Run `flutter doctor --android-licenses` to accept the SDK licenses.
      See https://flutter.dev/docs/get-started/install/macos#android-setup for more details.
[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
[✓] Chrome - develop for the web
[!] Android Studio (version 2022.1)
    ✗ Unable to find bundled Java version.
[✓] VS Code (version 1.69.2)
[✓] Connected device (3 available)
[✓] HTTP Host Availability

I symlinked the jbr director to jre according to this answer. This resolved both complaints. No other action was required.

score 0 · Answer 3 · answered Apr 19 '23 at 15:19

0

For me the solution working downloading latest version of java and update path to new jdk

answered Apr 19 '23 at 15:19

Guta Flores

13
2

Error: A JNI error has occurred, please check your installation and try again Exception in thread "main" within flutter

3 Answers3