Cognos:Converting from single select to multi select prompt Error


Error:

An unexpected exception occurred:
com.cognos.xqe.data.values.VarcharValue incompatible with com.cognos.xqe.data.values.ArrayValue

Cause:
We have condition to have default selection "ALL".

 ([Fund Code] in (?pFund?) )or
(?pFund? = ('ALL'))

After removing it, error was rectified:
[Fund Code] in (?pFund?)
and make filter optional.

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