oracle migration problem

I've tried to migrate scheme from oracle and see errors like this:

Error Creating Constraint FK_BASE_PAY_RECEIPT: ERROR: syntax error at or near ")" at position 111
ALTER TABLE PAY_RECEIPT ADD CONSTRAINT FK_BASE_PAY_RECEIPT FOREIGN KEY (PAYRECEIPT_ID) REFERENCES TIGER.null () MATCH FULL ON DELETE NO ACTION

After removing "()" and adding schema name to table:
ALTER TABLE tiger.CALC_ERROR ADD CONSTRAINT FK_CALC_ERROR_TYPE FOREIGN KEY (CALC_ERROR_TYPE_CODE) references tiger.null MATCH FULL ON DELETE NO ACTION;
ERROR: relation "tiger.null" does not exist

Google doesn't know about this problem or may be I ask wrong questions.
Give me some glues how to solve this problem.
Thanks.

Please share the definition of both the tables.

It was my fault. Oracle user does not had sufficient rights to migrate schema.

grizzly1 wrote:It was my fault. Oracle user does not had sufficient rights to migrate schema.

It was my reply.

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