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To resolve errors when deleting rows in SQL, you can follow these steps:

1. Check for constraints: Ensure that there are no constraints or foreign keys that prevent the rows from being deleted. If there is a constraint, you can either drop it or modify it to allow for the deletion of the rows.

2. Check for triggers: Triggers can also prevent the deletion of rows, you should identify and disable any triggers that could affect the delete operation.

3. Use the correct syntax: Ensure that you are using the correct syntax for the delete statement, including specifying the correct table name, column names, and where clause.

4. Check for permissions: Verify that you have the necessary permissions to delete the rows from the table.

5. Consider using transactions: Transactions can help ensure the integrity of the data by ensuring that the delete operation is either completely successful or not at all.

6. Backup your data: Ensure that you have a backup of your data before performing any delete operations, in case of any unforeseen consequences.