今天在安装eclipse Maven插件（m2eclipse)的时候报如下错误：
Cannot complete the install because one or more required items could not be found.
Software being installed: m2e connector for build-helper-maven-plugin 0.15.0.201207090124 (org.sonatype.m2e.buildhelper.feature.feature.group 0.15.0.201207090124)
Missing requirement: Maven Integration for Eclipse 1.4.0.20130601-0317 (org.eclipse.m2e.core 1.4.0.20130601-0317) requires 'bundle org.slf4j.api 1.6.2' but it could not be found
Missing requirement: Maven Integration for Eclipse 1.4.1.20140328-1905 (org.eclipse.m2e.core 1.4.1.20140328-1905) requires 'bundle org.slf4j.api 1.6.2' but it could not be found
Cannot satisfy dependency:
From: m2e connector for build-helper-maven-plugin 0.15.0.201207090124 (org.sonatype.m2e.buildhelper 0.15.0.201207090124)
To: bundle org.eclipse.m2e.core [1.1.0,2.0.0)
Cannot satisfy dependency:
From: m2e connector for build-helper-maven-plugin 0.15.0.201207090124 (org.sonatype.m2e.buildhelper.feature.feature.group 0.15.0.201207090124)
To: org.sonatype.m2e.buildhelper [0.15.0.201207090124]
解决方案：
根据以上错误信息很容易知道是由于eclipse的org.slf4j.api_X.X.X.jar版本过低导致的，查看home(eclipse的安装目录）/plugins目录发现此jar的版本为1.6.1，果断换成高版本后问题解决。