# Training CNN error / CNN text classification

**URL:** <https://community.konduit.ai/t/training-cnn-error-cnn-text-classification/1322>\
**Category:** DL4J\
**Created:** [April 16, 2021, 2:09pm UTC](https://community.konduit.ai/t/training-cnn-error-cnn-text-classification/1322 "2021-04-16T14:09:43Z")\
**Posts on this page:** 1\
**Showing post:** 39

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**Author:** ![ForceUpdate1](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.konduit.ai/forceupdate1/32/516_2.png) [@ForceUpdate1](https://community.konduit.ai/u/ForceUpdate1)\
**Post date:** [May 10, 2021, 11:51am UTC](https://community.konduit.ai/t/training-cnn-error-cnn-text-classification/1322/39 "2021-05-10T11:51:33Z")

</div>

> [@agibsonccc](#):
>
> I would recommend trying #1 to see if that works for you.

It doesn’t look like it’s going to work. I once built the project with Maven “clean install -U” that should update the dependencies.  
When I start the project from Intellij using Run, the same error occurs. Even after I have invalidated the cache.

If I start the output jar from maven this error comes:

```auto
13:50:25.205 [main] INFO org.nd4j.linalg.factory.Nd4jBackend - Loaded [JCublasBackend] backend
13:50:25.208 [main] ERROR org.nd4j.common.config.ND4JClassLoading - Cannot find class [org.nd4j.linalg.jblas.JblasBackend] of provided class-loader.
13:50:25.208 [main] ERROR org.nd4j.common.config.ND4JClassLoading - Cannot find class [org.canova.api.io.data.DoubleWritable] of provided class-loader.
13:50:25.209 [main] ERROR org.nd4j.common.config.ND4JClassLoading - Cannot find class [org.nd4j.linalg.jblas.JblasBackend] of provided class-loader.
13:50:25.209 [main] ERROR org.nd4j.common.config.ND4JClassLoading - Cannot find class [org.canova.api.io.data.DoubleWritable] of provided class-loader.
13:50:26.757 [main] INFO org.nd4j.nativeblas.NativeOpsHolder - Number of threads used for linear algebra: 32
13:50:26.790 [main] INFO org.nd4j.linalg.api.ops.executioner.DefaultOpExecutioner - Backend used: [CUDA]; OS: [Windows 10]
13:50:26.790 [main] INFO org.nd4j.linalg.api.ops.executioner.DefaultOpExecutioner - Cores: [8]; Memory: [7,1GB];
13:50:26.790 [main] INFO org.nd4j.linalg.api.ops.executioner.DefaultOpExecutioner - Blas vendor: [CUBLAS]
13:50:26.795 [main] INFO org.nd4j.linalg.jcublas.JCublasBackend - ND4J CUDA build version: 11.2.142
13:50:26.796 [main] INFO org.nd4j.linalg.jcublas.JCublasBackend - CUDA device 0: [NVIDIA GeForce GTX 1070]; cc: [6.1]; Total memory: [8589934592]
13:50:26.797 [main] INFO org.nd4j.linalg.jcublas.JCublasBackend - Backend build information:
 MSVC: 192829914
STD version: 201402L
CUDA: 11.2.142
DEFAULT_ENGINE: samediff::ENGINE_CUDA
HAVE_FLATBUFFERS
13:50:26.830 [main] INFO org.deeplearning4j.nn.multilayer.MultiLayerNetwork - Starting MultiLayerNetwork with WorkspaceModes set to [training: ENABLED; inference: ENABLED], cacheMode set to [NONE]
13:50:27.317 [main] ERROR org.nd4j.linalg.compression.BasicNDArrayCompressor - Error loading ND4J Compressors via service loader: No compressors were found. This usually occurs when running ND4J UI from an uber-jar, which was built incorrectly (without services resource files being included)
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.nd4j.linalg.factory.Nd4j.getCompressor(Nd4j.java:5314)
        at org.nd4j.linalg.api.ndarray.BaseNDArray.get(BaseNDArray.java:4122)
        at org.deeplearning4j.nn.multilayer.MultiLayerNetwork.init(MultiLayerNetwork.java:706)
        at org.deeplearning4j.nn.multilayer.MultiLayerNetwork.init(MultiLayerNetwork.java:604)
Caused by: java.lang.RuntimeException: Error loading ND4J Compressors via service loader: No compressors were found. This usually occurs when running ND4J UI from an uber-jar, which was built incorrectly (without services resource files being included)
        at org.nd4j.linalg.compression.BasicNDArrayCompressor.loadCompressors(BasicNDArrayCompressor.java:66)
        at org.nd4j.linalg.compression.BasicNDArrayCompressor.<init>(BasicNDArrayCompressor.java:46)
        at org.nd4j.linalg.compression.BasicNDArrayCompressor.<clinit>(BasicNDArrayCompressor.java:39)
        ... 6 more

```

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