org.pentaho.di.core.exception.KettleException: 2015/05/15 16:13:13 - Spoon - We failed to initialize at least one step. Execution can not begin! 2015/05/15 16:13:13 - Spoon - 2015/05/15 16:13:13 - Spoon -

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    org.pentaho.di.core.exception.KettleException: 2015/05/15 16:13:13 - Spoon - We failed to initialize at least one step. Execution can not begin! 2015/05/15 16:13:13 - Spoon - 2015/05/15 16:13:13 - Spoon -
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    org.pentaho.di.core.exception.KettleException: We failed to initialize at least one step. Execution can not begin!
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    org.pentaho.di.core.exception.KettleException: We failed to initialize at least one step. Execution can not begin!
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    GitHub comment 6#64252219

    GitHub | 2 years ago | tenderfeet
    org.pentaho.di.core.exception.KettleException: We failed to initialize at least one step. Execution can not begin!
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    If I execute a transform that uses the UDJS spoon that has been launched from spoon.app, the transform works fine. If I try the same transform from a Spoon instance launched via spoon.sh, I get the following exception: 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - Error initializing UserDefinedJavaClass to get fields: 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - Cannot load class "org.pentaho.di.trans.step.StepMetaInterface" through the given ClassLoader The transform also runs fine in YARN on HDP 2.0. Repro path: - Start Spoon.app by double clicking it on a Mac - Open "User Defined Java Class - Concatenate firstname and lastname.ktr" from the samples/transformations directory. - Press the run button - Delight in the proper execution of this transformation - Start spoon.sh by utilizing the Mac command line - Open "User Defined Java Class - Concatenate firstname and lastname.ktr" from the samples/transformations directory. - Press the run button - Feel the sadness course through your body as the following stack trace is spewed forth: 2014/06/27 16:28:48 - Spoon - Launching transformation [User Defined Java Class - Concatenate firstname and lastname]... 2014/06/27 16:28:48 - Spoon - Started the transformation execution. 2014/06/27 16:28:48 - User Defined Java Class - Concatenate firstname and lastname - Dispatching started for transformation [User Defined Java Class - Concatenate firstname and lastname] 2014/06/27 16:28:48 - User Defined Java Class.0 - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Error initializing UserDefinedJavaClass: 2014/06/27 16:28:48 - User Defined Java Class.0 - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : org.codehaus.janino.CompileException: Cannot load class "org.pentaho.di.trans.step.StepMetaInterface" through the given ClassLoader 2014/06/27 16:28:48 - User Defined Java Class.0 - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Error initializing step [User Defined Java Class] 2014/06/27 16:28:48 - User Defined Java Class - Concatenate firstname and lastname - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Step [User Defined Java Class.0] failed to initialize! 2014/06/27 16:28:48 - Spoon - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : User Defined Java Class - Concatenate firstname and lastname: preparing transformation execution failed 2014/06/27 16:28:48 - Spoon - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : org.pentaho.di.core.exception.KettleException: 2014/06/27 16:28:48 - Spoon - We failed to initialize at least one step. Execution can not begin! 2014/06/27 16:28:48 - Spoon - 2014/06/27 16:28:48 - Spoon - 2014/06/27 16:28:48 - Spoon - at org.pentaho.di.trans.Trans.prepareExecution(Trans.java:1140) 2014/06/27 16:28:48 - Spoon - at org.pentaho.di.ui.spoon.trans.TransGraph$27.run(TransGraph.java:3977) 2014/06/27 16:28:48 - Spoon - at java.lang.Thread.run(Thread.java:745) 2014/06/27 16:28:48 - User Defined Java Class - Concatenate firstname and lastname - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Errors detected! 2014/06/27 16:28:49 - User Defined Java Class - Concatenate firstname and lastname - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Errors detected! 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : Unable to get fields from previous steps because of an error 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - ERROR (version 5.1.0.0, build 1 from 2014-06-19_19-02-57 by buildguy) : org.pentaho.di.core.exception.KettleStepException: 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - Error initializing UserDefinedJavaClass to get fields: 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - Cannot load class "org.pentaho.di.trans.step.StepMetaInterface" through the given ClassLoader 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - at org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta.getFields(UserDefinedJavaClassMeta.java:391) 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - at org.pentaho.di.trans.TransMeta.getThisStepFields(TransMeta.java:1991) 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - at org.pentaho.di.trans.TransMeta.getThisStepFields(TransMeta.java:1941) 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - at org.pentaho.di.ui.trans.steps.userdefinedjavaclass.UserDefinedJavaClassDialog$9.run(UserDefinedJavaClassDialog.java:530) 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - at java.lang.Thread.run(Thread.java:745) 2014/06/27 16:29:00 - org.pentaho.di.trans.steps.userdefinedjavaclass.UserDefinedJavaClassMeta@73a8fe17 - Caused by: org.codehaus.janino.CompileException: Cannot load class "org.pentaho.di.trans.step.StepMetaInterface" through the given ClassLoader

    Pentaho BI Platform Tracking | 3 years ago | Doug Moran
    org.pentaho.di.core.exception.KettleException: 2014/06/27 16:28:48 - Spoon - We failed to initialize at least one step. Execution can not begin! 2014/06/27 16:28:48 - Spoon - 2014/06/27 16:28:48 - Spoon -

    Root Cause Analysis

    1. org.pentaho.di.core.exception.KettleException

      2015/05/15 16:13:13 - Spoon - We failed to initialize at least one step. Execution can not begin! 2015/05/15 16:13:13 - Spoon - 2015/05/15 16:13:13 - Spoon -

      at org.pentaho.di.trans.Trans.prepareExecution()
    2. org.pentaho.di
      TransGraph$27.run
      1. org.pentaho.di.trans.Trans.prepareExecution(Trans.java:1149)
      2. org.pentaho.di.ui.spoon.trans.TransGraph$27.run(TransGraph.java:3989)
      2 frames
    3. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:695)
      1 frame