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Has anyone come across a situation where they are unable to start a Sitefinity site due to this error

The database schema version (6421) is higher than the running Sitefinity version (6410). Downgrade is not allowed

I've searched for a decent answer but I haven't been able to find one yet. Any help would be good.

Ian Richards
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2 Answers2

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It means that you ran build 6421 on this database (and possibly upgaded it). Now you are trying to run a lower build 6410, which is not allowed by default. You can override this behavior by setting ignoreDowngradeExceptions="true" on the connection string, although you should be careful with using this approach on a production environment. In case of these two builds, overriding the default behavior will most probably not be a problem because they both belong to the same Sitefinity version (10.0), so there should be no schema changes between them. It would be a problem though, if you try to run a 9.2 build on a 10.0 database.

Ivan Eftimov
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I know its late. Maybe still can help someone else. Execute this query. Its works for me.

update [DB_NAME].[dbo].[sf_schema_vrsns]
set version_number = 6410
where version_number = 6421

update [DB_NAME].[dbo].[sf_schema_vrsns]
set [assembly] = REPLACE([assembly],'10.0.6421.0','10.0.6410.0')
where [assembly] like '%10.0.6421.0%';
Dhian Galang
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