[FIXED] Error creating bean with name 'dynamoDB-DynamoDBMapper'

Issue

When I run my Spring Boot 2.0.0 application with the current latest version of spring-data-dynamodb (v5.1.0) I get the following error at runtime.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamoDB-DynamoDBMapper': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.socialsignin.spring.data.dynamodb.repository.config.DynamoDBMapperFactory]: No default constructor found; nested exception is java.lang.NoSuchMethodException: org.socialsignin.spring.data.dynamodb.repository.config.DynamoDBMapperFactory.()

I have tried the following things:

1. Adding a DynamoDBMapperFactory bean to my configuration class and making it primary
2. Different combinations of AWSCredentials, DynamoDBMapperConfig, DynamoDBMapper and AmazonDynamoDB bean configurations (e.g. removing them, making them primary, giving them names and explicitly referring to them)
3. Different combintations of config passed to the EnableDynamoDBRepositories annotation

Solution

It turned out that spring-data-dynamo v5.1.0 was not compatible with my version of Spring Boot (2.0.0)

Downgrading the spring-data-dynamo library to v5.0.4 fixed my issues.

Answered By - Sean Dawson
Answer Checked By - Pedro (JavaFixing Volunteer)