Hello, I have models trained on PC (windows) beta6 and beta7 lib versions. When I try to run those models on Android i receive error: Caused by: java.lang.RuntimeException: Error loading ND4J Compressors via service loader: No compressors were found. This usually occurs when running ND4J UI from …

@lavajaw could you show us your build.gradle?

Sure, implementation (group: ‘org.deeplearning4j’, name: ‘deeplearning4j-core’, version: ‘1.0.0-beta6’) { exclude group: ‘org.bytedeco’, module: ‘opencv-platform’ exclude group: ‘org.bytedeco’, module: ‘leptonica-platform’ exclude group: ‘org.bytedeco’, module: ‘hdf5-platform’ exclude group: ‘o…

@lavajaw first off, could you upgrade to beta 7 with the later javacpp versions as well? @saudet can help you a bit more with android here.

Well with beta7 we have this problem: [image] Upgrade to beta7 - UnsatisfiedLinkError on Android ND4J @lavajaw for now use snapshots… we’re not sure about a release yet. Maybe within the next month or so, but we still have a few features to work on here. We won’t do a rele…

@agibsonccc @saudet Sorry guys, but I need to push you, because my next release depends on this. What I can try in this situation? Any workaround to run beta7 on Android?

I tried that and application can run now, but anyway if I use new models trained on beta7 or beta6 its throw error - java.lang.NoClassDefFoundError: org.nd4j.linalg.compression.BasicNDArrayCompressor. @saudet

Yeah, DL4J hasn’t been designed too much with backward compatibility in mind. You might need to resave your models to get them working. Among other things, since you’re using “compressors”, you’ll need to remove those and replace them with NDArrays of the right data type. In any case, ideally, it sh…

[image] saudet: You might need to resave your models to get them working. Among other things, since you’re using “compressors”, you’ll need to remove those and replace them with NDArrays of the right data type. @saudet Sorry, but can you explane how to do it? I just checked, old model and n…

NoClassDefFoundError - BasicNDArrayCompressor

saudet October 27, 2020, 10:16pm 8

If you bundle libc++_shared.so in your app, it should work with beta7.

JsonMappingException

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NoClassDefFoundError - BasicNDArrayCompressor

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