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Published Sep. 10, 2025

Upgrade fails for bundle(s) due to "Table 'X' already exists" error

Written By

Katlyn Lee

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Issue

  • When running the DB Upgrade Tool, I'm seeing that my upgrade process fails due to an error that looks something like the following:

    Bundle X has invalid content in tables.sql:_create table X 
    ...
    caused by ... Table 'X' already exists

Environment

  • Upgrade to Liferay DXP

Resolution

  • This error may occur in a specific situation where an admin restores a database backup to a schema that has previous been upgraded and runs the DB Upgrade Tool on the schema again. If the schema is not completely dropped, tables that were added by the initial upgrade process could still exist and cause the reported error.
  • To address this error, completely drop the schema and create a new schema prior to restoring the database backup for the upgrade process. 
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