Error: Could not find or load main class in JavaFX jar file

Answered

I created an app using IntelliJ Ultimate.

It's a JavaFX app to store details and send bulk sms. Followed the help on creating artifacts https://www.jetbrains.com/help/idea/creating-running-and-packaging-your-first-java-application.html#run_app 

But when I run the Jar file, it outputs that error.

Please what am i doing wrong?

This is my repo: 

https://github.com/connelevalsam/Messaging-app/tree/version2.0 

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10 comments

Make sure you have specified the class in JavaFX artifact settings

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Thanks for your reply.

I tried this  now, deleted the old manifest file and .jar file and then Build and rRun.

Shows the same error.

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Does it work when you launch it via Application Run/Debug Configuration? If you see this error only when running standalone jar issue is likely with the classpath: https://stackoverflow.com/a/18093929/2000323 

I've uploaded a bit modified project to https://www.dropbox.com/s/euhx5blwo9lso47/Messaging-app.zip?dl=0 which runs fine for me:

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Hello thanks.

I run a lot of Java/ golang programs with this IDE no issue.

Now trying to run a jar, no way, i don't know.

But there's a jar i did sometime ago with CLI and that runs.

What if i added classpath during artifacts creation.

Am gonna check what you sent. Thanks.

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Permanently deleted user

Hi !

Thanks for those precious informations. I've followed them all, they got me closer to the bunldeled app, but still struguling with a problem :

Java FX Packager: /path/to/workspace/parcelmanagergui/out/ParcelManagerGUI.jar (is a folder)

Why does intelliJ creates a folder - and then complains about it ? I tried to change the native bundle format but none of them seems to work. As well as output directory, name and type of the artefact...

Any idea ?

Thanks !

Max

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What do you get this error? Can you show the full output and your JavaFX artifact configuration or a sample project?

For uploading you can use https://uploads.jetbrains.com or any file sharing service.

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Permanently deleted user

I try to build a standalone JavaFX application, here is the artifact configuration :

and the project can be found here https://framagit.org/artiscales/parcelmanagergui (it may not compile right tho as I need to get to work to deploy related projects on the forge - and it's been a while !)

Thanks !

 

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Commented the unresolved code. Artifact build works:

Try to rename :jar from it's name.

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Permanently deleted user

Thanks a lot. I'm still struggling.

I reproduced the objects you have on the 'output layout' pane. Create a new archive and set manifest infos (Main Class : fr.ign.artiscales.pm.gui.App). It now give me the error :

Java FX Packager: Can't build artifact - fx:deploy is not available in this JDK

Followed what was here : https://www.jetbrains.com/help/idea/packaging-javafx-applications.html#troubleshoot with completing some environment variable, but I doubt that could be the solution.

Tried to put the path of the javaFX sdk lib in the Class Path of the created archive - no effect

Then put the javafx-sdk element from the Available Elements panel (I first tried to put every lib from the 'Available Elements' inside, that is mandatory if I want to bundle everthing inside right?) but no effect as well

Anyway thanks a lot for your time and reactivity !!

Cheers

Max

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>Java FX Packager: Can't build artifact - fx:deploy is not available in this JDK

JavaFX packager has been removed in JDK 11+. Oracle has open issues to restore removed in java 11 packager:
https://bugs.openjdk.java.net/browse/JDK-8212780
https://openjdk.java.net/jeps/343

Please see  also https://youtrack.jetbrains.com/issue/IDEA-200721 for details and some links to sample projects if you need to build JavaFX with 11+ JDK.

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