Why do we receive the error "Unable to use a text data to render a numerical/datetime axis" when generating a preview of a BIRT report?

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Problem:

Why do we receive the error "Unable to use a text data to render a numerical/datetime axis" when generating a preview of a BIRT report?

Resolution:

QUESTION
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Why do we receive the error "Unable to use a text data to render a numerical/datetime axis" when generating a preview of a BIRT report?

ANSWER
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This is caused by trying to assign a value of type “ANY” to a graphs Y axis. The Y value can only be Numerical, Logarithmic or a Date.

Screenshot of error message

Access your Data Set (in this example “ReportData”) and select “Output Columns”. Locate the data column being assigned to the “Y” axis and change the “Type” to integer/float/date etc.

Screenshot of editing Data Set

Click “OK” and back on the “Preview” page you will see the error is gone.

Screenshot of new report

Old KB# 24978
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