安装 m2e-egit 后在 Eclipse IDE (Mars) 中发现 Maven 丢失
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Maven found missing in Eclipse IDE (Mars) after installing m2e-egit
提问by Prashanth Sams
unable to create a maven project after installing the m2e-egit plugin; Obviously I don't see the maven option under Eclipse > Window > preferences
安装m2e-egit插件后无法创建maven项目；显然我在Eclipse > 窗口 > 首选项下没有看到 maven 选项
Tool used:
使用的工具：
Eclipse Java EE IDE for Web Developers.
Version: Mars Release (4.5.0)
回答by Jorel
Try this :
尝试这个 ：
Firstly, for Maven: Eclipse > Help > Install new softwareand add http://download.eclipse.org/technology/m2e/releases.
首先，对于 Maven： Eclipse > 帮助 > 安装新软件并添加http://download.eclipse.org/technology/m2e/releases。
Secondly, for m2e-egit: Eclipse > Help > Install new softwareand add https://repository.takari.io/content/sites/m2e.extras/m2eclipse-egit/0.14.0/N/LATEST/. Because the version of m2e-egit in the Marketplace is outdated
其次，对于 m2e-egit： Eclipse > 帮助 > 安装新软件并添加 https://repository.takari.io/content/sites/m2e.extras/m2eclipse-egit/0.14.0/N/LATEST/。因为Marketplace中的m2e-egit版本已经过时了
Now restart eclipse.
现在重新启动eclipse。
It perfectly worked for me (Mars Version).
它非常适合我（火星版）。
回答by fwc
I had this same issue with m2eclipse-scala. I tracked the issue down to what seems to be multiple installs of the m2e plugin, one explicit and one implicit. This plugin gets installed by m2eclipse-scala if it's not already there (perhaps similarly to how m2e-egit operates). The base version of Eclipse that I'm using does NOT show m2e installed under Window > Installation Details, but all of the Maven buttons and toolbars are already present, and explicitly installing m2e makes them disappear.
我对 m2eclipse-scala 有同样的问题。我将问题归结为似乎是多次安装 m2e 插件，一个是显式安装，一个是隐式安装。如果 m2eclipse-scala 还没有安装这个插件（可能类似于 m2e-egit 的操作方式）。我正在使用的 Eclipse 的基本版本没有显示在窗口 > 安装详细信息下安装的 m2e，但是所有 Maven 按钮和工具栏都已经存在，并且明确安装 m2e 会使它们消失。
