Error: could not unconvert attribute dynamodb

Answered by Rafal Wilinski
What's Causing This Error
This error occurs in Java when the mapper class is not defined correctly. For example, the SDK creates an instance of the mapper class using a "No-Arg" constructor and uses "Setter" methods to assign data to the object. So, you will run into this error if the mapper class is missing a No-Arg constructor or has invalid Setters/Getters that do not comply with the camel case convention.
Solution - Here's How To Resolve It
To resolve the error, ensure that you have provided a No-Arg constructor. This can be done by manually defining the constructor in your class or using a Lombok library.
Then, ensure that the getter/setter methods are correctly defined in the class. For example, if a mapper class has a property "age" of type Integer, the setter/getter would be similar to the snippet shown below.
private int age; public void setAge(int age) { this.age = age; } public int getAge(){ return age; }
Other Common DynamoDB Errors (with Solutions)
- dynamodb the parameter cannot be converted to a numeric value
- dynamodb property projection cannot be empty
- DynamoDB table not updating
- DynamoDB Scan Not Working
- requested resource not found aws dynamodb
- Unable to start DynamoDB Local process
- DynamoDB no attribute schema defined
- dynamodb net scan condition or not working
- DynamoDB batch write is not working
- dynamodb-admin command not found
- dynamodb list_append returns true but does not work
- aws.dynamodb.converter.unmarshall not working
- DynamoDB missing items
- DynamoDB local error spawn java ENOENT
- AWS CLI DynamoDB Error Parsing Parameter