ABAP class &1 contains syntax error in include &3, line &4

What causes this issue?

ABAP class &V1& contains syntax error '&V2&' in include &V3&, line &V4&.

System Response

In case the corresponding task has not been executed already, it will
be skipped. If the task has been executed, the execution status and the
task log remains.

How to fix this error?

Contact the class owner. In case the class is provided by SAP, check the
SAP Online Service System for class name &V1& and syntax error '&V2&'.

Error message extract from SAP system. Copyright SAP SE.