Oracle Solution for Error ora-19133

ORA-19133: XQST0073: It is a static error if the graph of module imports contains a cycle (that is, if there exists a sequence of modules M1 ... Mn such that each Mi imports Mi+1 and Mn imports M1), unless all the modules in the cycle share a common namespace

What triggered the Error:

error occurred during the processing of the XQuery expression.

What should we do to fix it:

eck the detailed error message for the possible causes.