eclipse使用ant编译问题

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注：eclipse是Mars版本

1.ant编译报Could not find the main class: org.eclipse.ant.internal.launching.remote.InternalAntRunner. Program will exit.错误

I just installed Mars and when I tried to execute a build.xml after checking out an existing and working project I got that error message:Could not find the main class: org.eclipse.ant.internal.launching.remote.InternalAntRunner. Program will exit.

The solution is to go to Run as → External tools configuration… → JRE where the default was set to “Separate JDK”: jdk1.6.0_31 (I had set up JDKs 6-8 in Preferences after installing). I changed this to “run in the same JRE as the workspace” and now it works.

Bug fix would be to provide a working default configuration with setup. Configuration should be in a way it does not break if the user adds additional JDKs to Preferences.

原文地址：https://bugs.eclipse.org/bugs/show_bug.cgi?id=472599

2.ant编译报JRE version less than 1.7 is not supported错

解决方法：http://stackoverflow.com/questions/31052878/run-eclipse-mars-with-java-1-6

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