Transport object & not defined

What causes this issue?

System error: Asset Customizing is trying to transfer at least one
entry but read access did not find any possible entry on the
corresponding objects.
The logical object in question is &V2& and characteristic &V1&.

System Response

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

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.