[SOLVED] Error executing background job 'Creating Display'

nennat

Hi all,

I've looked around the forum a bit , but I couldn't figure out a definitve solution to this problem.
Everytime I try to load in an Excel or a CSV file I get the following error. This error does not occur when I use tutorial data provided with RapidMiner.
An additional note, I have been working with the data set all day, but for some reason it quit on me 2 hours ago. Reinstalling did not solve anything (I guess because the uninstaller does not clear everything, since I did not have to reinstall any extensions)

Error:

Exception:	java.util.EmptyStackException
Message:	null
Stack trace:
  java.util.Stack.peek(Unknown Source)
  javax.swing.text.DefaultStyledDocument$ElementBuffer.insertElement(Unknown Source)
  javax.swing.text.DefaultStyledDocument$ElementBuffer.insertUpdate(Unknown Source)
  javax.swing.text.DefaultStyledDocument$ElementBuffer.insert(Unknown Source)
  javax.swing.text.DefaultStyledDocument.insert(Unknown Source)
  javax.swing.text.html.HTMLDocument.insert(Unknown Source)
  javax.swing.text.html.HTMLDocument$HTMLReader.flushBuffer(Unknown Source)
  javax.swing.text.html.HTMLDocument$HTMLReader.flush(Unknown Source)
  javax.swing.text.html.HTMLEditorKit.read(Unknown Source)
  javax.swing.JEditorPane.setText(Unknown Source)
  javax.swing.JEditorPane.<init>(Unknown Source)
  com.rapidminer.gui.tools.ExtendedHTMLJEditorPane.<init>(ExtendedHTMLJEditorPane.java:53)
  com.rapidminer.gui.processeditor.results.SingleResultOverview.makeMainLabel(SingleResultOverview.java:262)
  com.rapidminer.gui.processeditor.results.SingleResultOverview.<init>(SingleResultOverview.java:152)
  com.rapidminer.gui.processeditor.results.ProcessExecutionResultOverview.<init>(ProcessExecutionResultOverview.java:167)
  com.rapidminer.gui.processeditor.results.ResultOverview.addResults(ResultOverview.java:117)
  com.rapidminer.gui.processeditor.results.DockableResultDisplay$4.run(DockableResultDisplay.java:191)
  com.rapidminer.gui.tools.ProgressThread$2.run(ProgressThread.java:189)
  java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
  java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
  java.lang.Thread.run(Unknown Source)

And the project:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.2.008">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.2.008" expanded="true" name="Process">
    <process expanded="true" height="235" width="145">
      <operator activated="true" class="read_csv" compatibility="5.2.008" expanded="true" height="60" name="Read CSV" width="90" x="80" y="145">
        <parameter key="csv_file" value="D:\Downloads\aai Pharma.csv"/>
        <parameter key="column_separators" value=","/>
        <parameter key="use_quotes" value="false"/>
        <parameter key="first_row_as_names" value="false"/>
        <list key="annotations"/>
        <parameter key="encoding" value="windows-1252"/>
        <list key="data_set_meta_data_information">
          <parameter key="0" value="att1.true.binominal.attribute"/>
          <parameter key="1" value="att2.true.polynominal.attribute"/>
          <parameter key="2" value="att3.true.polynominal.attribute"/>
          <parameter key="3" value="att4.false.polynominal.attribute"/>
          <parameter key="4" value="att5.false.polynominal.attribute"/>
          <parameter key="5" value="att6.true.polynominal.attribute"/>
          <parameter key="6" value="att7.true.polynominal.attribute"/>
        </list>
      </operator>
      <connect from_op="Read CSV" from_port="output" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

Thanks in advance for any help offered!

Skirzynski

Could you provide an example of your CSV with just a few lines and anonymised (in case your have sensitve data) which fails with the given error? I have tried to reproduce your error with some dummy data which fit to your operator, but i was not "successful" at all.

nennat

This is one of the exact data sets I have used, it is from a web crawl of an anonymous message board.
It is with 14 MB the smallest I currently have. It has about 20.000 lines of data in it, another crawl that I will also want to use has 200.000 lines.
https://www.dropbox.com/s/y2kbruoz5btjbu9/daiichi.csv

Skirzynski

Congratulations! You have found a bug! 

It seems that nobody before you tried to read and display HTML-tags in the result overview. I have fixed the bug in our trunk.

So there are a few possible quick fixes for you:

• Wait for the next release
• Wait for the sourceforge-synchronization (tomorrow, but if you are in a hurry i could trigger this today by hand) and use this source code
• Do not display the result and process it directly
• Insert a "Generate Attribute" operator to escape the HTML (see the process below)

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.000">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.3.000" expanded="true" name="Process">
    <process expanded="true" height="235" width="480">
      <operator activated="true" class="read_csv" compatibility="5.3.000" expanded="true" height="60" name="Read CSV" width="90" x="45" y="30">
        <parameter key="csv_file" value="/home/marcin/Desktop/daiichi.short.csv"/>
        <parameter key="column_separators" value=","/>
        <parameter key="use_quotes" value="false"/>
        <parameter key="first_row_as_names" value="false"/>
        <list key="annotations"/>
        <parameter key="encoding" value="windows-1252"/>
        <list key="data_set_meta_data_information">
          <parameter key="0" value="att1.true.binominal.attribute"/>
          <parameter key="1" value="att2.true.polynominal.attribute"/>
          <parameter key="2" value="att3.true.polynominal.attribute"/>
          <parameter key="3" value="att4.false.polynominal.attribute"/>
          <parameter key="4" value="att5.false.polynominal.attribute"/>
          <parameter key="5" value="att6.true.polynominal.attribute"/>
          <parameter key="6" value="att7.true.polynominal.attribute"/>
        </list>
      </operator>
      <operator activated="true" class="generate_attributes" compatibility="5.3.000" expanded="true" height="76" name="Generate Attributes" width="90" x="246" y="30">
        <list key="function_descriptions">
          <parameter key="att7" value="escape_html(att7)"/>
        </list>
      </operator>
      <connect from_op="Read CSV" from_port="output" to_op="Generate Attributes" to_port="example set input"/>
      <connect from_op="Generate Attributes" from_port="example set output" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>

nennat

Well that explains a lot!
Thanks for your quick response and help!

saurabh_jhaveri

Hi,

 

This is Saurabh, I'm also getting a similar error

 

 

• Exception: java.lang.NullPointerException
• Message: null
• Stack trace:
• com.rapidminer.operator.ports.metadata.MetaDataFactory.createMetaDataforIOObject(MetaDataFactory.java:86)
• com.rapidminer.operator.ports.metadata.MetaData.forIOObject(MetaData.java:228)
• com.rapidminer.gui.processeditor.results.SingleResultOverview.(SingleResultOverview.java:154)
• com.rapidminer.gui.processeditor.results.ProcessExecutionResultOverview.(ProcessExecutionResultOverview.java:210)
• com.rapidminer.gui.processeditor.results.ResultOverview.addResults(ResultOverview.java:128)
• com.rapidminer.gui.processeditor.results.DockableResultDisplay$5.run(DockableResultDisplay.java:226)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:550)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
• java.lang.Thread.run(Thread.java:745)