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 DB of a similar or the same version 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 reading ECO_ORMAPPING from TextBox into db2.

How to use:

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