mvn安装不是在eclipse中工作，而是从命令行运行得很好。

Question

我无法通过eclipse构建一个项目，但是当我运行mvn干净安装时，它可以正常工作。我得到了以下问题。

Failed to execute goal org.apache.maven.plugins:maven-install-plugin:2.4:install (default-install) on project abc-xxx: Execution default-
install of goal org.apache.maven.plugins:maven-install-plugin:2.4:install 
failed: Plugin org.apache.maven.plugins:maven-install-plugin:2.4 or one of its 
dependencies could not be resolved: Failed to collect dependencies at 
org.apache.maven.plugins:maven-install-plugin:jar:2.4 -> 
org.codehaus.plexus:plexus-utils:jar:3.0.5: Failed to read artifact descriptor 
for org.codehaus.plexus:plexus-utils:jar:3.0.5: Could not transfer artifact 
org.codehaus.plexus:plexus-utils:pom:3.0.5 from/to anonymous 
(https://nexus.xxx.xxx.xxx/nexus/content/groups/xxx):     
sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: 
unable to find valid  certification path to requested target

Answer 1

确保在命令行中使用的JDK与在您的中使用的相同。

在命令行中键入：

java -version

然后在日食中：

 windows -> preferences -> Installed JREs

maven也是如此。

在命令行中键入：

mvn -version

日食：

 windows -> preferences -> Maven -> User settings
 windows -> preferences -> Maven -> Installations