Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required

This error message typically occurs in a Spring application that uses MyBatis as the data access layer. The error message is indicating that either the 'sqlSessionFactory' or 'sqlSessionTemplate' property is missing or not properly configured.

To fix this error, you need to ensure that the MyBatis configuration file is properly configured in your Spring application context. You should also ensure that the 'sqlSessionFactory' or 'sqlSessionTemplate' bean is defined in your Spring application context and properly referenced in your MyBatis mapper class.

Here are some steps you can follow to fix this error:

1. Ensure that the MyBatis configuration file is properly configured in your Spring application context. This file should include the necessary database connection information, as well as any other MyBatis configuration settings.

2. Define the 'sqlSessionFactory' or 'sqlSessionTemplate' bean in your Spring application context. This bean should be properly configured to reference the MyBatis configuration file and any other required dependencies.

3. Ensure that the 'sqlSessionFactory' or 'sqlSessionTemplate' bean is properly referenced in your MyBatis mapper class. This can be done using the '@Autowired' annotation or by manually configuring the bean reference in your mapper class.

By following these steps, you should be able to resolve the 'Property 'sqlSessionFactory' or 'sqlSessionTemplate' are required' error and successfully configure MyBatis in your Spring application.