Getting error for a native dependency in DL4J

[LobsterMan123]

First of all, I'd like to apologize if this help request is misplaced, but I would like to ask HGuillemet a question on something he helped another user with and he was knowledgeable about the issue. I unfortunately did not know how else to reach out and establish contact.

My issue is: I am trying to code with DL4J on Termux, a Linux emulator for Android and I was told that this is possible. When I compile my sample project with: mvn -Djavacpp.platform=android-arm clean package
it compiles nicely with no errors & builds my uber jar. However, it doesn't run, I instead get the error: "java.lang.UnsatisfiedLinkError: Could not find jniopenblas_nolapack in class, module, and library paths."

I read one of your troubleshooting responses to the above error and there was mention of including the line "org.bytedeco.javacv.platform" (I suppose including it in the compiling/jar-building process) and that everything would be packaged correctly and be found (no more error). I therefore modified my build/compile command to: mvn -DargLine="org.bytedeco.javacpp.pathsfirst=true -Djavacpp.platform=android-arm org.bytedeco.javacv.platform" -Dorg.bytedeco.javacpp.pathsfirst=true -Djavacpp.platform=android-arm clean package

but now it gives me a new error of "The forked VM terminated without saying properly goodbye. VM crash or System.exit called ?"

My pom file is found at: https://github.com/LobsterMan123/startingDL4J/blob/main/pom.xml

Would you please help me troubleshoot this? I want my project to compile with no errors and also run and not crash because dependencies cannot be found. Am I missing a dependency? Is my compile/build command wrong (i.e. not including the necessary arguments)?

Thank you and again I apologize if this message is misplaced but I would very much appreciate your help.

LM

[saudet]

It just sounds like you're not including all the JAR files in the class path. You'll need to make sure to include all the JAR files in your class path.

[LobsterMan123]

Ok, but I don't have any "loose" standalone jar files in my possession. The way I have structured my pom file seen in the provided link, I have always obtained an uber jar file with everything needed in said uber jar. Having this prepared uber jar, I don't know how to specify jar files it's supposed to have inside of it. Should I obtain a standalone jar file for this "jniopenblas_nolapack" from someplace outside of the maven repository? If so, where do I get it from so that I can put it manually in the classpath as you describe? Thanks.

LM

PS: sorry if my questions are elementary but I've never had a run failure happen like this to me before

[saudet]

There might be some things that need to be adjusted to run with Java SE on Android 🤔

In any case, contributions are welcome! Please open a pull request if you figure out the issue.

[LobsterMan123]

I'll definitely submit a pull request if I can identify the root issue.

LM

[saudet]

Please set the "org.bytedeco.javacpp.logger.debug" system property to "true" to get more information on the console.

[LobsterMan123]

I resolved the "forked VM" crashing error. It turns out there was a small typo in the docs that omitted a "-D" in the "-DargLine=" argument enclosed in the double quotes. My project is building good, but the running is still resulting in an error that jniopenblas cannot be found. Thanks.

LM

[saudet]

Please set the "org.bytedeco.javacpp.logger.debug" system property to "true" to get more information on the console.