AI-generated Key Takeaways
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NullError indicates an error caused by providing a non-null value for an attribute that is expected to be null.
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This error inherits properties from ApiError, including fieldPath, fieldPathElements, trigger, and errorString to help identify the cause of the error.
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The specific reason for the NullError is available through the 'reason' field, which is an enum that can indicate if the value is NOT_NULL or UNKNOWN.
 
Caused by supplying a non-null value for an attribute that should be null.
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
                        Field | 
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|---|---|
                        
                           ApiError (inherited)
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                  |
                        
                           
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                            The OGNL field path to identify cause of error.  | 
                  
                        
                           
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                         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
                        
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                         The error reason represented by an enum. Enumerations 
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