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项目结构后端pom.xml<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.a

Parameter 0 of constructor in org.activiti.core.common.spring.identity.ActivitiUserGroupManagerImpl required a bean of type 'org.springframework.security.core.userdetails.UserDetailsService' that could not be found.

<dependency> <groupId>org.activiti</groupId> <artifactId>activiti-spring-boot-starter</artifactId> <exclusions> <exclusion> <groupId>org