Attribute [&1] not defined

What causes this issue?

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

System Response

How to fix this error?

You maintain the attribute &V1& in the following activity:
<DS:SIMG.CMAP_VC>Set up model for semantic mapping</>, Navigation step:
<LS>define attribute</>.
Then enter the settings for attribute mapping.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.