在pom.xml文件中创建maven项目时出错

Question

--我在pom.xml中创建maven项目时遇到了错误

你能帮我弄清楚为什么我在我的maven项目中会出现这个错误吗？

CoreException: Could not get the value for parameter compilerId for plugin execution default-compile: PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of its 
         dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven:maven-plugin-api:jar:2.0.9, org.apache.maven:maven-artifact:jar:2.0.9, org.codehaus.plexus:plexus-utils:jar:
         1.5.1, org.apache.maven:maven-core:jar:2.0.9, org.apache.maven:maven-settings:jar:2.0.9, org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.9, org.apache.maven:maven-profile:jar:2.0.9, 
         org.apache.maven:maven-model:jar:2.0.9, org.apache.maven:maven-repository-metadata:jar:2.0.9, org.apache.maven:maven-error-diagnostics:jar:2.0.9, org.apache.maven:maven-project:jar:2.0.9, 
         org.apache.maven:maven-plugin-registry:jar:2.0.9, org.apache.maven:maven-plugin-descriptor:jar:2.0.9, org.apache.maven:maven-artifact-manager:jar:2.0.9, org.apache.maven:maven-monitor:jar:2.0.9, 
         org.apache.maven:maven-toolchain:jar:1.0, org.apache.maven.shared:maven-shared-utils:jar:0.1, org.apache.maven.shared:maven-shared-incremental:jar:1.1, org.codehaus.plexus:plexus-compiler-api:jar:2.2, 
         org.codehaus.plexus:plexus-compiler-manager:jar:2.2, org.codehaus.plexus:plexus-compiler-javac:jar:2.2, org.codehaus.plexus:plexus-container-default:jar:1.5.5: Failure to transfer org.apache.maven:maven-
         plugin-api:jar:2.0.9 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. 
         Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:jar:2.0.9 from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.
        - Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (execution: default-testCompile, phase: test-compile)
        - CoreException: Could not get the value for parameter compilerId for plugin execution default-testCompile: PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one 
         of its dependencies could not be resolved: The following artifacts could not be resolved: org.apache.maven:maven-plugin-api:jar:2.0.9, org.apache.maven:maven-artifact:jar:2.0.9, org.codehaus.plexus:plexus-
         utils:jar:1.5.1, org.apache.maven:maven-core:jar:2.0.9, org.apache.maven:maven-settings:jar:2.0.9, org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.9, org.apache.maven:maven-profile:jar:2.0.9, 
         org.apache.maven:maven-model:jar:2.0.9, org.apache.maven:maven-repository-metadata:jar:2.0.9, org.apache.maven:maven-error-diagnostics:jar:2.0.9, org.apache.maven:maven-project:jar:2.0.9, 
         org.apache.maven:maven-plugin-registry:jar:2.0.9, org.apache.maven:maven-plugin-descriptor:jar:2.0.9, org.apache.maven:maven-artifact-manager:jar:2.0.9, org.apache.maven:maven-monitor:jar:2.0.9, 
         org.apache.maven:maven-toolchain:jar:1.0, org.apache.maven.shared:maven-shared-utils:jar:0.1, org.apache.maven.shared:maven-shared-incremental:jar:1.1, org.codehaus.plexus:plexus-compiler-api:jar:2.2, 
         org.codehaus.plexus:plexus-compiler-manager:jar:2.2, org.codehaus.plexus:plexus-compiler-javac:jar:2.2, org.codehaus.plexus:plexus-container-default:jar:1.5.5: Failure to transfer org.apache.maven:maven-
         plugin-api:jar:2.0.9 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. 
         Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:jar:2.0.9 from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled.
        - Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (execution: default-compile, phase: compile)

Answer 1

我没有更新maven项目，这就是我在创建的新项目中获得错误的原因。

如何更新maven项目: 1.创建maven项目，2.右键单击maven项目，3.Go to Maven选项，4.单击Maven选项，5.单击“更新项目”选项