How To Fix SDDIC_ADT_DDLX077 - Cannot annotate '&1'. The type of the annotated entity is not supported

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 077

• Message text: Cannot annotate '&1'. The type of the annotated entity is not supported

What causes this issue?

The type of the annotated entity is not supported.
With the "ANNOTATE ENTITY" syntax, the following types are supported:
Views
View Entities
Projection Views
Abstract Entities
Hierarchies

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDDIC_ADT_DDLX077 - Cannot annotate '&1'. The type of the annotated entity is not supported ?

  The SAP error message SDDIC_ADT_DDLX077 indicates that there is an issue with annotating a specific entity in the context of the ABAP Development Tools (ADT) for Eclipse. The error message states that the type of the annotated entity is not supported, which typically means that the entity you are trying to annotate does not meet the requirements for the specific annotation you are attempting to apply.
  Cause
  The primary causes of this error can include:
  
  
  Unsupported Entity Type: The entity you are trying to annotate may not be of a type that supports the specific annotation you are using. For example, certain annotations may only be applicable to specific types of database tables, views, or other objects.
  
  
  Incorrect Annotation Usage: You may be using an annotation that is not valid for the context or the type of the entity. This can happen if the annotation is intended for a different type of object.
  
  
  Version Compatibility: The version of the ABAP system or the ADT tools you are using may not support the specific annotation you are trying to apply.
  
  
  Solution
  To resolve the error, you can take the following steps:
  
  
  Check Entity Type: Verify the type of the entity you are trying to annotate. Ensure that it is compatible with the annotation you are attempting to use. Refer to the SAP documentation for the specific annotation to see which entity types are supported.
  
  
  Review Annotation Documentation: Consult the official SAP documentation for the annotation you are trying to use. This will provide insights into the correct usage and any limitations.
  
  
  Update ADT Tools: Ensure that you are using the latest version of the ABAP Development Tools for Eclipse. Sometimes, newer versions include support for additional annotations or fix bugs related to annotation processing.
  
  
  Use Alternative Annotations: If the annotation you are trying to use is not supported for the entity type, consider using an alternative annotation that is appropriate for the entity.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  
  Seek Help from Community or Support: If you are still unable to resolve the issue, consider reaching out to the SAP community forums or SAP support for assistance.
  
  
  Related Information
  
  SAP Documentation: Always refer to the official SAP Help Portal for the most accurate and detailed information regarding annotations and their usage.
  ABAP Development Tools: Familiarize yourself with the features and limitations of the ADT tools, as they can impact how annotations are applied.
  SAP Community: Engage with the SAP Community for discussions and solutions related to similar issues encountered by other developers.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.