AI-generated Key Takeaways
- 
          
The NullError class is used to represent errors that occur when a NOT NULL check is violated.
 - 
          
NullError inherits properties from the ApiError class, including
fieldPath,fieldPathElements,trigger, anderrorString. - 
          
The NullError class has a specific
reasonfield that indicates the cause of the error as an enum. - 
          
The only defined reason for a NullError is
NULL_CONTENT, which means a specified list or container must not contain any null elements. 
Errors associated with violation of a NOT NULL check.
- Namespace
 - 
               
https://www.google.com/apis/ads/publisher/v202508 
                        Field | 
                  |
|---|---|
                        
                           ApiError (inherited)
                      | 
                  |
                        
                           
                      | 
                     
                         
                            The OGNL field path to identify cause of error.  | 
                  
                        
                           
                      | 
                     
                        
                         A parsed copy of the field path. For example, the field path "operations[1].operand" corresponds to this list: {FieldPathElement(field = "operations", index = 1), FieldPathElement(field = "operand", index = null)}.  | 
                  
                        
                           
                      | 
                     
                         
                            The data that caused the error.  | 
                  
                        
                           
                      | 
                     
                         
                            A simple string representation of the error and reason.  | 
                  
                        
                           NullError
                        
                      | 
                  |
                        
                           
                      | 
                     
                        
                         The error reason represented by an enum. Enumerations 
  |