我已開始也是這樣，反復看了兩遍視頻，手動創(chuàng)建的文件夾刪了找對位置在走一遍好了，你可以試試

<?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.apache.org/xsd/maven-4.0.0.xsd">
??<modelVersion>4.0.0</modelVersion>

??<groupId>com.miaoshaproject</groupId>
??<artifactId>miaosha</artifactId>
??<version>1.0-SNAPSHOT</version>

??<name>miaosha</name>
??<!--?FIXME?change?it?to?the?project's?website?-->
??<url>http://www.example.com</url>

??<parent>
????<groupId>org.springframework.boot</groupId>
????<artifactId>spring-boot-starter-parent</artifactId>
????<version>2.0.5.RELEASE</version>
??</parent>

??<properties>
????<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
????<maven.compiler.source>1.7</maven.compiler.source>
????<maven.compiler.target>1.7</maven.compiler.target>
??</properties>

??<dependencies>
????<dependency>
??????<groupId>org.springframework.boot</groupId>
??????<artifactId>spring-boot-starter-web</artifactId>
????</dependency>
????<dependency>
??????<groupId>mysql</groupId>
??????<artifactId>mysql-connector-java</artifactId>
??????<version>5.1.30</version>
????</dependency>
????<dependency>
??????<groupId>com.alibaba</groupId>
??????<artifactId>druid</artifactId>
??????<version>1.1.3</version>
????</dependency>
????<dependency>
??????<groupId>org.mybatis.spring.boot</groupId>
??????<artifactId>mybatis-spring-boot-starter</artifactId>
??????<version>1.3.1</version>
????</dependency>
????<dependency>
??????<groupId>junit</groupId>
??????<artifactId>junit</artifactId>
??????<version>4.11</version>
??????<scope>test</scope>
????</dependency>
??</dependencies>

??<build>
????<pluginManagement><!--?lock?down?plugins?versions?to?avoid?using?Maven?defaults?(may?be?moved?to?parent?pom)?-->
??????<plugins>
????????<!--?clean?lifecycle,?see?https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle?-->
????????<plugin>
??????????<artifactId>maven-clean-plugin</artifactId>
??????????<version>3.1.0</version>
????????</plugin>
????????<!--?default?lifecycle,?jar?packaging:?see?https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging?-->
????????<plugin>
??????????<artifactId>maven-resources-plugin</artifactId>
??????????<version>3.0.2</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-compiler-plugin</artifactId>
??????????<version>3.8.0</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-surefire-plugin</artifactId>
??????????<version>2.22.1</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-jar-plugin</artifactId>
??????????<version>3.0.2</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-install-plugin</artifactId>
??????????<version>2.5.2</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-deploy-plugin</artifactId>
??????????<version>2.8.2</version>
????????</plugin>
????????<!--?site?lifecycle,?see?https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle?-->
????????<plugin>
??????????<artifactId>maven-site-plugin</artifactId>
??????????<version>3.7.1</version>
????????</plugin>
????????<plugin>
??????????<artifactId>maven-project-info-reports-plugin</artifactId>
??????????<version>3.0.0</version>
????????</plugin>
????????<plugin>
??????????<groupId>org.mybatis.generator</groupId>
??????????<artifactId>mybatis-generator-maven-plugin</artifactId>
??????????<version>1.3.7</version>
??????????<dependencies>
????????????<dependency>
??????????????<groupId>org.mybatis.generator</groupId>
??????????????<artifactId>mybatis-generator-core</artifactId>
??????????????<version>1.3.5</version>
????????????</dependency>
????????????<dependency>
??????????????<groupId>mysql</groupId>
??????????????<artifactId>mysql-connector-java</artifactId>
??????????????<version>5.1.30</version>
????????????</dependency>
??????????</dependencies>
??????????<executions>
????????????<execution>
??????????????<id>mybatis?generator</id>
??????????????<phase>package</phase>
??????????????<goals>
????????????????<goal>generate</goal>
??????????????</goals>
????????????</execution>
??????????</executions>
??????????<configuration>
????????????<!--?允許移動生成的文件?-->
????????????<verbose>true</verbose>
????????????<!--?允許自動覆蓋文件??-->
????????????<overwrite>true</overwrite>
????????????<configurationFile>
??????????????src/main/resources/mybatis-generator.xml
????????????</configurationFile>
??????????</configuration>
????????</plugin>
??????</plugins>
????</pluginManagement>
??</build>
</project>

這個錯誤是哪個不兼容呀？

把mybatis-generator.xml的代碼粘上來看看