- Metadata Compatibility

Metadata Compatibility

A compatibility problem can occur when either the user metadata or the system metadata is not compatible with the current WOW codebase.

Listed below are the most common WOW compatibility errors:

1) Unapplied Updates

When WOW starts up or accesses a project schema for the first time, it examines which updates have been applied to the metadata and compares them to the list of updates which it expects to have been applied. If there is a mismatch, then WOW reports that mismatch as a compatibility problem.

example:

The solution is to apply updates to the project schema, bringing it into compatibility with the current codebase. (As mentioned above, applying updates to a schema may prevent that schema from working with previous versions of WOW.)

2) Previous WOW Version

Applying updates to a project schema may make that schema unusable by previous versions of WOW. This error is displayed when an older version of WOW attempts to access a schema which has been updated by a newer version of WOW:

3) Wrong Environment

As described above, a project schema can be restricted to a particular environment. If WOW is running in a different environment mode than the one specified in the schema, WOW will not be able to access that schema.

The solution is to either edit the project schema’s settings and remove the environment restriction; or to run WOW in a different environment mode.