Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'courseBaseMapper' defined in file [D:\Users\maxin\IdeaProjects\xuecheng-plus-project148\xuecheng-plus-project148\xuecheng-plus-content\xuecheng-plus-content-service\target\classes\com\xuecheng\content\mapper\CourseBaseMapper.class]: Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/xuecheng/content/mapper/CourseBaseMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'com.xuecheng.content.model.dto.TeachplanDto'. Cause: java.lang.ClassNotFoundException: Cannot find class: com.xuecheng.content.model.dto.TeachplanDto这是什么错误

这是一个关于Spring框架下bean创建时出现异常的错误，具体原因是在初始化CourseBaseMapper时，解析Mapper XML时出现了错误。错误的具体原因是在解析CourseBaseMapper.xml文件时，解析器无法找到类'com.xuecheng.content.model.dto.TeachplanDto'，导致初始化失败。

相关问题

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userMapper' defined in file

根据提供的引用内容，可以看出问题中的错误是由于创建名为'userMapper'的bean时出现的。然而，在所提供的引用内容中并没有找到与'userMapper'相关的错误信息或解决方法。因此，我无法提供关于'userMapper'的具体解决方法。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name](https://blog.csdn.net/zhan107876/article/details/112462058)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [报错：Caused by org.springframework.beans.factory.BeanCreationException](https://blog.csdn.net/m0_67390969/article/details/126578957)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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mybatisplus Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userMapper' defined in file

引用和显示了在Spring Boot整合MyBatis-Plus时出现的错误。错误信息表明在创建bean时发生了异常，并且无法找到符合条件的bean。在引用中，用户通过检查数据源的配置和添加@EnableAutoConfiguration注解来尝试解决问题。然而，问题仍然存在。

根据给出的引用内容，可以推测造成错误的原因可能是以下几种情况之一：
1. 数据源配置错误：请确保在application.properties（或其他配置文件）中正确配置了数据源的相关参数，例如数据库URL、用户名和密码等。
2. Bean定义错误：请确保在定义bean时，正确引入了所需的MyBatis-Plus的相关依赖，并配置了正确的包扫描路径。
3. 依赖缺失：请确保项目中已经正确地引入了MyBatis-Plus的相关依赖，并正确配置了项目的依赖关系。
4. 注解配置错误：请确保在启动类上正确添加了@EnableAutoConfiguration注解，并且通过exclude属性排除了DataSourceAutoConfiguration类。

综上所述，解决这个问题的方法是：
1. 仔细检查数据源配置，确保数据库URL、用户名和密码等参数的正确性。
2. 确认项目中已经引入了MyBatis-Plus的相关依赖，并在bean定义时正确配置了包扫描路径。
3. 检查项目的依赖关系，确保MyBatis-Plus的相关依赖正确引入。
4. 在启动类上添加@EnableAutoConfiguration注解，并通过exclude属性排除DataSourceAutoConfiguration类。

通过以上步骤，您应该能够解决MyBatis-Plus引起的BeanCreationException错误，并成功创建UserMapper bean。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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