Unable to load type mappings, project metadata invalid

What causes this issue?

The metadata stored in addition to the project data is incomplete for
some reason.

System Response

SIW is unable to retrieve any additional type information from the
Service Repository to display it in the GDT finder.

How to fix this error?

Create a new project and delete this one.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.