Error: does not support attribute type arn aws dynamodb

Answered by Rafal Wilinski
What's Causing This Error
This error occurs whenyou try to use an attribute of type "arn". By default, DynamoDB does not supports arn type attributes.
Solution: Here's How To Resolve It
Double check your code and make sure you are using the correct attribute types for DynamoDB. Also, ensure that you are using the latest version of the AWS SDK or the AWS CLI, as new updates may have added support for additional attribute types.
Other Common DynamoDB Errors (with Solutions)
- failed to list tables not authorized dynamodb
- DynamoDB Local Cannot Create Preexisting Table
- dynamodb does not accept empty set
- dynamodb getItem() is not a function
- DynamoDB Local NoClassDefFoundError
- DynamoDB Internal Server Error
- ProvisionedThroughputExceededException DynamoDB
- Conditional Update Error DynamoDB
- why is the GSI dynamodb not showing item count
- sls dynamodb install not working
- Boto3 DynamoDB KeyError
- DynamoDB Delete Not Working
- DynamoDB Is Unsupported It Cannot Be Instantiated
- could not unmarshal the value dynamodb
Spend less time in the AWS console, use Dynobase.
Try 7-day free trial. No credit card needed.
Product Features
DynamoDB Tools
DynamoDB Info
© 2025 Dynobase