无法加载项目（Netbeans IDE）

Question

[ERROR] 'dependencies.dependency.version' for org.springframework.boot:spring-boot-starter:jar is missing. @ line 22, column 21
[ERROR] 'dependencies.dependency.version' for org.projectlombok:lombok:jar is missing. @ line 33, column 21
[ERROR] 'dependencies.dependency.version' for org.apache.logging.log4j:log4j-api:jar is missing. @ line 39, column 21
[ERROR] 'dependencies.dependency.version' for org.apache.logging.log4j:log4j-core:jar is missing. @ line 43, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-core:jar is missing. @ line 54, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-aspects:jar is missing. @ line 58, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-context:jar is missing. @ line 62, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-web:jar is missing. @ line 66, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-webmvc:jar is missing. @ line 70, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-orm:jar is missing. @ line 74, column 21
[ERROR] 'dependencies.dependency.version' for org.springframework:spring-tx:jar is missing. @ line 78, column 21

Answer 1

您复制的项目似乎引用了另一个项目。如果打开pom.xml，那里可能有一个“parent”部分，其中定义了父项目：

<!-- Identifier of the parent project -->
<parent>
    <groupId>...group of your parent project...</groupId>
    <artifactId>... artefactId of your parent project ...</artifactId>
    <version>... version of your parent project ...</version>
</parent

此父项目可能包含与版本的依赖关系。您复制的子模块包含没有版本的依赖项：

<!-- Version of the dependency is defined in parent pom in dependencyManagement section -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <!-- here should be the version -->
</dependency>

您还需要在计算机上复制父项目，或者手动设置所有依赖项版本。