title: eclipse open error failed to find main class in eclipse\\plugins/org...jar
body: <p>at the beginning it says that failed to find java jdk or jre so i installed it. then i run it again it came up this. 
  It says that "<code>Failed to find a Main Class in ... eclipse\\plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar</code>"</p>
  
  <p>java file are under </p>
  
  <pre><code>C:\Program Files (x86)\Java\jre1.8.0_31 &amp;&amp; jre7
  C:\Program Files\Java\jdk1.8.0_31 &amp;&amp; jre1.8.0_31
  </code></pre>
  
  <p>my eclipse file are under</p>
  
  <pre><code>D:\迅雷下载\操作系统\eclipse
  </code></pre>
  
  <p>can someone tell me how to fix this ??</p>