Bar Chart node

Hi,
I have a strange behavior of my workflow when I execute it in the new web interface. This workflow uses a Bar Chart node. The option ‘Report on missing values’ is unchecked as well as the option ‘Show warnings in view’. When I run the workflow, the graph is displayed but when I click on the ‘Next’ button the following page (see below) appears instead of the expected next page. I can view this one only if I click on the ‘Back’ button. Note, that the workflow runs perfectly in the legacy web portal.
Any ideas on what is going on here?
Thanks,
Regards,
Claire

Hi Claire,

Would you answer a few questions to help us narrow down the root cause:

Just to make sure I understand the issue properly, if you run the workflow, you eventually get to the error page that you attached as the picture, but if you hit the back button you are able to get to the Bar Chart that you need?

  1. What version of KNIME Executor are you running on the server?
  2. What version of KNIME AP did you publish the workflow from?
  3. If you change the option of “Report on missing values” does the workflow run properly?
  4. Are you able to send us the workflow for us to test on our environments? If no because of the data in the workflow, could you possibly create a workflow with dummy data?
    5.If you uncheck the show warnings view, does the workflow run properly?
  5. Do you have any other workflows with the bar chart node that run properly?

Let’s start there and see if we can narrow down the scope.

Thanks,
Zack

Hi Zack,

Find below answers to your questions:

1/ We are running v 4.2.2 for KNIME Executor on our Knime server 4.11.3.

2/ I used version 4.2.2 of KNIME AP to develop and publish the workflow.

3/ Changing this option has no effect.

4/ I have included the workflow and an input data file with Dummy data.

5/ The option to disable warnings is unchecked at the server level. Is there another option to check?

6/ Unfortunately it is the only workflow I have using this node.

This behavior happens only when I am running the workflow using the new web portal interface. In the ‘legacy’ version, the workflow runs perfectly.

Regards,

Claire
Compile_MS_Track_ForKnime.knwf (460.5 KB) MS_Tracking_DummyData.xlsx (319.2 KB)

Hi Claire,

I have tested the sample workflow, with the sample excel doc you sent over and I am able to successfully run the workflow (graphs displayed properly) in both legacy and the new web portal, however I am using the 4.11.4 executor for KNIME Server, can you please attempt to upgrade to 4.11.4 for the executor and let me know if you still experience the same issue?

Thanks,
Zack

Hi Zack,
Thanks for your tests. Unfortunately, I cannot upgrade to 4.11.4 - this is under the control of our Knime administrator here. Would it be possible that you install 4.11.3 instead of 4.11.4 to run this test?
Thanks,
Regards,
Claire

Hi Claire,

Sure, I will set up a 4.11.3 environment and get back to you once I have tested.

Thanks,
Zack