Oracle Solution for Error ora-19151

ORA-19151: XQST0093: It is a static error to import a module M1 if there exists a sequence of modules M1 ... Mi ... M1 such that each module directly depends on the next module in the sequence (informally, if M1 depends on itself through some chain of module dependencies.)

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.