Attribute Missing Error

karim_keshavjee
karim_keshavjee New Altair Community Member
edited November 2024 in Community Q&A
Hi,

I'm getting an Attribute Missing Error for a Join operator:



However, the attribute is definitely there: 



Any suggestions?  I can't seem to find a similar error reported before.

Thanks,

Karim


PS.  I tried setting the role before and after the De-Pivot that came earlier.  Nothing happened.  I tried generating a new attribute called Question_ID based on the Question_ID that already exists.  No help.
Tagged:

Best Answers

  • karim_keshavjee
    karim_keshavjee New Altair Community Member
    Answer ✓
    Fixed it for now by storing the result of the previous process and retrieving it for the following process.  A bit of a silly work around, but it does work.
  • MartinLiebig
    MartinLiebig
    Altair Employee
    Answer ✓
    Hi,
    Pivot, De-Pivot and Transpose is the other main source. Since every operator only knows the schema, and not the content it cannot calculate the resulting schema for such operations.

    Best,
    Martin

Answers

  • karim_keshavjee
    karim_keshavjee New Altair Community Member
    Answer ✓
    Fixed it for now by storing the result of the previous process and retrieving it for the following process.  A bit of a silly work around, but it does work.
  • MartinLiebig
    MartinLiebig
    Altair Employee
    this is only a problem, not an error. It occurs because one of the previous operators, does not report that the left hand side key attribute is in the data set. Commonly the cause is a Read Excel or Read CSV operator, where you did not use the import wizard but configured the operator manually.

    Best,
    Martin
  • karim_keshavjee
    karim_keshavjee New Altair Community Member
    Hi Martin,

    Nope.  I did use the Wizard.  There was no problem until I used the De-Pivot operator.  After that, it stopped recognizing the attribute.

    K
  • MartinLiebig
    MartinLiebig
    Altair Employee
    Answer ✓
    Hi,
    Pivot, De-Pivot and Transpose is the other main source. Since every operator only knows the schema, and not the content it cannot calculate the resulting schema for such operations.

    Best,
    Martin