An attempt was made to call a method that does not exist. The attempt was made from the following location:
com.baomidou.mybatisplus.core.MybatisMapperAnnotationBuilder.getLanguageDriver(MybatisMapperAnnotationBuilder.java:371)
The following method did not exist:
com.baomidou.mybatisplus.core.MybatisConfiguration.getLanguageDriver(Ljava/lang/Class;)Lorg/apache/ibatis/scripting/LanguageDriver;
The method's class, com.baomidou.mybatisplus.core.MybatisConfiguration, is available from the following locations:
jar:file:/C:/maven/repository/com/baomidou/mybatis-plus-core/3.3.2/mybatis-plus-core-3.3.2.jar!/com/baomidou/mybatisplus/core/MybatisConfiguration.class
It was loaded from the following location:
file:/C:/maven/repository/com/baomidou/mybatis-plus-core/3.3.2/mybatis-plus-core-3.3.2.jar
Action:
Correct the classpath of your application so that it contains a single, compatible version of com.baomidou.mybatisplus.core.MybatisConfiguration
原因分析
mybatisplus 包依赖冲突导致，大家可以展开mybatis的包依赖，可以看到mybatis依赖显示冲突,mybatisplus依赖的是3.5.2,但是被一个3.4.2的版本冲突了(idea编辑器界面如下)
进行依赖分析找到产生此依赖的包,使用idea分析如下 mybatis----》activiti-engine----》activiti-spring-boot-starter(项目中引入的)
最终可以确定是由于我在项目中引入了activiti-spring-boot-starter，activiti-spring-boot-starter中引入了mybatis3.4.2，导致产生mybatis依赖包冲突，mybatis-plus使用了低版本的mybatis，导致method that does not exist。
解决办法:排除activiti-spring-boot-starter中的mybatis，使用mybatisplus中高版本的mybatis，重新编译工程(一般使用高版本的mybatis，除非版本不兼容,再想办法)。
org.activiti activiti-spring-boot-starter 7.1.0.M4 org.mybatis mybatis
