Could not autowire. No beans of 'JavaMailSender' type found

This error occurs when the Spring framework is unable to find a bean of type 'JavaMailSender'. To fix this issue, you need to make sure that you have properly configured the JavaMailSender bean in your Spring application context.

Here are a few steps you can follow to resolve this problem:

1. Make sure you have the necessary dependencies in your project. You need to include the appropriate Spring Boot starter for sending emails, which includes the JavaMailSender dependency. For example, if you're using Maven, you can add the following dependency to your pom.xml file:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
</dependency>

2. Check your application.properties or application.yml file and ensure that you have configured the necessary properties for email sending. This includes properties such as `spring.mail.host`,