B4J Question Problem with jPi4J2 library - can't build standalone package

DitoNet

Member
Licensed User
Hello,
I'm creating app for RPi using jPi4J2 library, as described in this post: https://www.b4x.com/android/forum/threads/pi4j2-raspberry-pi-i-o-library.136113/#post-862693
Library and it's dependencies are in 'Additional Libraries' folder.
When I'm compiling app and running it on RPi using B4J Bridge, everything is fine.
But when I tried to build standalone package, I've received followed errors:
B4X:
B4JPackager11 Version 1.40
Exe name: PiTester.exe
build folder: D:\Grzegorz\Documents\B4X_PR~1\PiTester\Objects\temp\build
InputJar: D:\Grzegorz\Documents\B4X_Projects\PiTester\Objects\PiTester.jar
Running: D:\Grzegorz\Documents\B4X_PR~1\PiTester\Objects\temp\FindDosPath.exe
Running: D:\OpenJDK\bin\jar
Non-UI program
Package name: b4j.example
Running: D:\OpenJDK\bin\jdeps
Exception in thread "main" java.lang.module.FindException: Module com.pi4j not found, required by com.pi4j.plugin.raspberrypi
    at java.base/java.lang.module.Resolver.findFail(Resolver.java:877)
    at java.base/java.lang.module.Resolver.resolve(Resolver.java:191)
    at java.base/java.lang.module.Resolver.resolve(Resolver.java:140)
    at java.base/java.lang.module.Configuration.resolve(Configuration.java:411)
    at java.base/java.lang.module.Configuration.resolve(Configuration.java:245)
    at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration.<init>(JdepsConfiguration.java:117)
    at jdk.jdeps/com.sun.tools.jdeps.JdepsConfiguration$Builder.build(JdepsConfiguration.java:563)
    at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.buildConfig(JdepsTask.java:589)
    at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:543)
    at jdk.jdeps/com.sun.tools.jdeps.JdepsTask.run(JdepsTask.java:519)
    at jdk.jdeps/com.sun.tools.jdeps.Main.main(Main.java:49)
I'm new to B4J, what am I doing wrong?
How to add 'com.pi4j' module?

Regards, Grzegorz.
 

DitoNet

Member
Licensed User
Erel, thanks for Your answer.
I know that standalone package builder generates EXE file for Windows, but I thought, that this step is also necessary to build standalone JAR for Linux.
Finally, I just compiled my project, transfered JAR file to my RPi, and run it without problems.

Regards, Grzegorz.
 
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