Troubleshooting
Problem
Some rules show "Invalid cardinality" errors during build.
Symptom
The following error is shown in the rules
Invalid cardinality 'SINGLE', it is incompatible with 'MULTIPLE'
or
Invalid variable 'object [MULTIPLE]' for expected type 'java.util.Collection [SINGLE]'.
or
Invalid variable 'object [MULTIPLE]' for expected type 'java.util.Collection [SINGLE]'.
Document Location
Worldwide
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSQP76","label":"IBM Operational Decision Manager"},"ARM Category":[{"code":"a8m50000000L1MZAA0","label":"Rule Designer-\u003EAuthoring"}],"ARM Case Number":"TS003651308","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Version(s)","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
26 May 2020
UID
ibm16216879