We have seen cases where the admin db __MDrivenServer/App_data/DatabaseCompact.sdf has been corrupted between deploys and will not evolve correctly.

Because of this scenario, a tool exists to help move the admin_ECO_ORMAPPING from a similar/same versioned DB into the corrupt one.

1. Download the DB.
2. Use the tool found here: C:\CapableObjectsWush\source\AppCompleteGeneric\AppCompleteGenericFixCorruptAdminDB\

What the tool does is:

1. Given two compact DBs, read ECO_ORMAPPING into TextBox
2. Allow to read ECO_ORMAPPING from TextBox into db2

How to use:

1. Download DB
2. Find same version DB
3. Read ECO_ORMAPPING from correct - possibly manually.
4. Update if no correct version is found and apply mapping to corrupt DB.