# Repair and rollback problems Start from what you are seeing. Each page names the symptom, explains the cause, and says what to do next. Several of these are not faults at all: they are numbers that look alarming and are not, which is worth knowing before anybody raises a ticket. --- ## Symptoms [I need to undo an entire migrationn/a](https://help.gocapable.com/migration/i-need-to-undo-an-entire-migration.html) [Rollback says a page was edited after migrationIf you have already run the Repair diagram tabs or Repair diagram layout tool on that page, rollback does not ](https://help.gocapable.com/migration/rollback-says-a-page-was-edited-after-migration.html) [Rollback will not start: log not usable, or site mismatchEither the log is missing the run start, run finish or page results it needs, or the log was produced on a dif](https://help.gocapable.com/migration/rollback-will-not-start-log-not-usable-or-site-mismatch.html) [Rollback skipped a page and gave a reason I do not recogniseThese are internal reason codes shown as-is. They mean, in order: the run never actually changed this page; th](https://help.gocapable.com/migration/rollback-skipped-a-page-and-gave-a-reason-i-do-not-recognise.html) [A repair tool says there is nothing to fixThese tools never sweep the site — they only look at pages you hand them, from a log or by ID. A page whose lo](https://help.gocapable.com/migration/a-repair-tool-says-there-is-nothing-to-fix.html) --- ## Everything under here [I need to undo an entire migrationI need to undo an entire migration.](https://help.gocapable.com/migration/i-need-to-undo-an-entire-migration.html)[Rollback says a page was edited after migrationRollback says a page was "Edited after migration" but nobody touched it.](https://help.gocapable.com/migration/rollback-says-a-page-was-edited-after-migration.html)[Rollback will not start: log not usable, or site mismatchRollback refuses to start with "Log not usable for rollback" or "Site mismatch".](https://help.gocapable.com/migration/rollback-will-not-start-log-not-usable-or-site-mismatch.html)[Rollback skipped a page and gave a reason I do not recogniseRollback shows a page as "Skip: noMigrationVersion", "Skip: nothingBefore" or "Skip: alreadyRolledBack".](https://help.gocapable.com/migration/rollback-skipped-a-page-and-gave-a-reason-i-do-not-recognise.html)[A repair tool says there is nothing to fixA repair tool says "0 to fix" or "0 to change" and I do not believe it.](https://help.gocapable.com/migration/a-repair-tool-says-there-is-nothing-to-fix.html) --- ## Related [TroubleshootingEvery symptom.](https://help.gocapable.com/migration/troubleshooting.html) [Repair and rollbackFixing forward.](https://help.gocapable.com/migration/repair-and-rollback.html) [Results and logsReading the report.](https://help.gocapable.com/migration/results-and-logs.html) --- _The log is the key. Keep it._