【发布时间】：2016-05-06 09:45:46
【问题描述】：
一段时间以来，我一直在使用带有 M2E 插件的 Eclipse Luna。我最近决定升级到 Eclipse Mars，但在此之前，我将所有 Maven 插件升级到了最新版本。一旦我这样做了，我就验证了一切都建立在命令行上，并且也建立在 Eclipse 中。然后我启动了 Eclipse Mars，安装了最新的 M2E 插件，并开始导入我的项目。不幸的是，事情并没有那么顺利。我收到以下错误：
CoreException: Could not get the value for parameter compilerId for plugin execution default-compile:
PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.5 or one of its dependencies could not be resolved:
The following artifacts could not be resolved:
org.apache.maven:maven-plugin-api:jar:3.0,
org.apache.maven:maven-model:jar:3.0
org.sonatype.sisu:sisu-inject-plexus:jar:1.4.2
org.apache.maven:maven-artifact:jar:3.0
org.apache.maven:maven-core:jar:3.0
org.apache.maven:maven-settings:jar:3.0
org.apache.maven:maven-settings-builder:jar:3.0
org.apache.maven:maven-repository-metadata:jar:3.0
org.apache.maven:maven-model-builder:jar:3.0
org.apache.maven:maven-aether-provider:jar:3.0
org.sonatype.aether:aether-impl:jar:1.7
org.sonatype.aether:aether-spi:jar:1.7
org.sonatype.aether:aether-api:jar:1.7
org.codehaus.plexus:plexus-classworlds:jar:2.2.3
org.apache.maven:maven-toolchain:jar:2.2.1:
Failure to transfer org.apache.maven:maven-plugin-api:jar:3.0 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:3.0 from/to central (https://repo.maven.apache.org/maven2):
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to
find valid certification path to requested target pom.xml /pacbridge-utl line 4 Maven Project Build Lifecycle Mapping Problem
Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources failed:
Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved:
The following artifacts could not be resolved:
org.apache.maven:maven-plugin-api:jar:2.0.6
org.apache.maven:maven-project:jar:2.0.6
org.apache.maven:maven-profile:jar:2.0.6
org.apache.maven:maven-artifact-manager:jar:2.0.6
org.apache.maven:maven-plugin-registry:jar:2.0.6
org.apache.maven:maven-core:jar:2.0.6
org.apache.maven:maven-plugin-parameter-documenter:jar:2.0.6
org.apache.maven:maven-repository-metadata:jar:2.0.6
org.apache.maven:maven-error-diagnostics:jar:2.0.6
org.apache.maven:maven-plugin-descriptor:jar:2.0.6
org.apache.maven:maven-artifact:jar:2.0.6
org.apache.maven:maven-settings:jar:2.0.6
org.apache.maven:maven-model:jar:2.0.6
org.apache.maven:maven-monitor:jar:2.0.6:
Failure to transfer org.apache.maven:maven-plugin-api:jar:2.0.6 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:2.0.6 from/to central (https://repo.maven.apache.org/maven2):
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException:
unable to find valid certification path to requested target (org.apache.maven.plugins:maven-resources-plugin:2.6:resources:default-resources:process-resources)
我比较了我的 Eclipse 设置（在 Luna 和 Mars 之间），一切看起来都一样。特别是，我确保 Windows/Preferences/General/Network Connections 相同（即我的代理设置正确），并且我尝试从命令行运行“mvn -U clean install”。正如我所说，命令行构建运行良好，但 Eclipse Mars 无法构建。任何人都可以提出解决方案吗？顺便说一句：我正在使用带有 Java 8 的 Maven 3.3.3
谢谢。
【问题讨论】：
-
eclipse 是使用其嵌入式 Maven 版本还是安装在您的机器上的版本？
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我正在使用我机器上安装的那个。