I am facing problems, while trying to run the NetworkAPIDemo example with reference to the htm.java-examples If I try to run the code, I get the error:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.NoClassDefFoundError: no/uib/cipr/matrix/sparse/FlexCompRowMatrix
at org.numenta.nupic.algorithms.SDRClassifier.<init>(SDRClassifier.java:180)
at org.numenta.nupic.algorithms.SDRClassifier.<init>(SDRClassifier.java:159)
at org.numenta.nupic.network.Layer.makeClassifiers(Layer.java:1947)
at org.numenta.nupic.network.Layer.close(Layer.java:504)
at org.numenta.nupic.network.Region.close(Region.java:199)
at org.numenta.nupic.network.Region.observe(Region.java:315)
at org.numenta.nupic.network.Network.observe(Network.java:535)
at Intro2.NetworkAPIDemo.<init>(NetworkAPIDemo.java:66)
at Intro2.NetworkAPIDemo.main(NetworkAPIDemo.java:242)
Caused by: java.lang.ClassNotFoundException: no.uib.cipr.matrix.sparse.FlexCompRowMatrix
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 9 more
If I add the dependency to the POM file:
com.googlecode.matrix-toolkits-java.mtj.1.0.2
I get the error:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "Sensor Layer [Region 1:Layer 5] Thread" java.lang.NoSuchMethodError: no.uib.cipr.matrix.sparse.FlexCompRowMatrix.addCol([D)V
at org.numenta.nupic.algorithms.SDRClassifier.compute(SDRClassifier.java:280)
at org.numenta.nupic.network.Layer$FunctionFactory$3.call(Layer.java:2372)
at org.numenta.nupic.network.Layer$FunctionFactory$3.call(Layer.java:2345)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorCast$1.onNext(OperatorCast.java:50)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
at rx.subjects.PublishSubject.onNext(PublishSubject.java:114)
at org.numenta.nupic.network.Layer.compute(Layer.java:956)
at org.numenta.nupic.network.Region$2.onNext(Region.java:653)
at org.numenta.nupic.network.Region$2.onNext(Region.java:646)
at org.numenta.nupic.network.Layer$3.onNext(Layer.java:1863)
at org.numenta.nupic.network.Layer$3.onNext(Layer.java:1843)
at rx.Observable$33.onNext(Observable.java:7480)
at rx.observers.SafeSubscriber.onNext(SafeSubscriber.java:130)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorCast$1.onNext(OperatorCast.java:50)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
at rx.subjects.PublishSubject.onNext(PublishSubject.java:114)
at org.numenta.nupic.network.Layer.compute(Layer.java:956)
at org.numenta.nupic.network.Region$2.onNext(Region.java:653)
at org.numenta.nupic.network.Region$2.onNext(Region.java:646)
at org.numenta.nupic.network.Layer$3.onNext(Layer.java:1863)
at org.numenta.nupic.network.Layer$3.onNext(Layer.java:1843)
at rx.Observable$33.onNext(Observable.java:7480)
at rx.observers.SafeSubscriber.onNext(SafeSubscriber.java:130)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
at rx.internal.operators.OperatorCast$1.onNext(OperatorCast.java:50)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:54)
at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:224)
at rx.subjects.PublishSubject.onNext(PublishSubject.java:114)
at org.numenta.nupic.network.Layer.compute(Layer.java:956)
at org.numenta.nupic.network.Layer$5.lambda$run$1(Layer.java:2039)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at org.numenta.nupic.network.Layer$5.run(Layer.java:2036)
Caused by: rx.exceptions.OnErrorThrowable$OnNextValue: OnError while emitting onNext value: org.numenta.nupic.network.ManualInput.class
at rx.exceptions.OnErrorThrowable.addValueAsLastCause(OnErrorThrowable.java:101)
at rx.internal.operators.OperatorFilter$1.onNext(OperatorFilter.java:60)
... 46 more
Caused by: rx.exceptions.OnErrorThrowable$OnNextValue: OnError while emitting onNext value: [I.class
at rx.exceptions.OnErrorThrowable.addValueAsLastCause(OnErrorThrowable.java:101)
at rx.internal.operators.OperatorCast$1.onNext(OperatorCast.java:52)
... 16 more
I encountered the problem with both openjdk1.8 and oracle_jdk1.8 as well.
com.googlecode.matrix-toolkits-java.mtj.1.0.2 can be found in the .m2 folder (I'm using Maven with Eclipse).
I tried running it on two computers, it worked with one of the computers, but the same code did not work with another computer. I did not bother with the Cortico examples, so external libraries should not cause any problem. In the POM file, I specify only the dependency
org.numenta.htm.java.0.6.13
If I add the external libraries (which can be found in the libs folder), I get the error:
Exception in thread "main" java.lang.NoSuchMethodError: org.numenta.nupic.Parameters.set(Lorg/numenta/nupic/Parameters$KEY;Ljava/lang/Object;)V
at Intro2.NetworkDemoHarness.getParameters(NetworkDemoHarness.java:211)
at Intro2.NetworkAPIDemo.createMultiLayerNetwork(NetworkAPIDemo.java:105)
at Intro2.NetworkAPIDemo.<init>(NetworkAPIDemo.java:62)
at Intro2.NetworkAPIDemo.main(NetworkAPIDemo.java:242)
I did not build the project from source, I only specified the dependencies in the POM.xml File. org.numenta.htm.java.0.6.12 can be found in the .m2 folder. I tried using 0.6.13 version of htm.java, but encountered the same problem.
POM.xml includes:
Specifying maven compiler to java 1.8
Specifying htm.java dependency
I am using Ubuntu 16.04 with Java:
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
Running:
mvn clean install
is successful with two warnings and 1 error:
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[ERROR] error reading /home/szi/.m2/repository/algorithmfoundry/algorithmfoundry-shade-culled/1.3/algorithmfoundry-shade-culled-1.3.jar; invalid LOC header (bad signature)
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
Running:
mvn -e exec:java -Dexec.mainClass="/home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java"
Gives the error:
[INFO] Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building HTM.Intro 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- exec-maven-plugin:1.6.0:java (default-cli) @ HTM.Intro ---
[WARNING]
java.lang.ClassNotFoundException: /home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:270)
at java.lang.Thread.run(Thread.java:748)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.990 s
[INFO] Finished at: 2017-05-23T12:03:37+02:00
[INFO] Final Memory: 12M/303M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project HTM.Intro: An exception occured while executing the Java class. /home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.6.0:java (default-cli) on project HTM.Intro: An exception occured while executing the Java class. /home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.MojoExecutionException: An exception occured while executing the Java class. /home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java
at org.codehaus.mojo.exec.ExecJavaMojo.execute(ExecJavaMojo.java:339)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 20 more
Caused by: java.lang.ClassNotFoundException: /home/szi/Documents/Eclipse/Java/HTM/src/main/java/Intro2/NetworkAPIDemo.java
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:270)
at java.lang.Thread.run(Thread.java:748)
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
Can someone please give me an advice on what can be wrong? I copy-pasted the code from the github repository without modification.
Thank you for any help!
Problem solved!
If anyone encountered the same problem, you should add the library algorithmfoundry-shade-culled-1.3.jar to your project .