Eclipse - 在Eclipse中运行ant目标时出现错误控制台

Question

我正在使用eclipse kepler IDE。我在我的eclipse IDE中安装了JBoss Tools插件。当我第一次运行ant目标时，在我的eclipse IDE中得到了一个错误控制台。但如果我第二次运行相同的目标，它将成功运行。以下是错误控制台上显示的消息

Errors occurred during the build.
Errors running builder 'Integrated External Tool Builder' on project 'MY_PROJECT'.
Launch configuration type id "org.maven.ide.eclipse.Maven2BuilderConfigurationType" does not exist.
Possible causes:
    Missing specification of a launch type (missing plug-in)
    Incorrect launch configuration XML
Launch configuration type id "org.maven.ide.eclipse.Maven2BuilderConfigurationType" does not exist.
Possible causes:
    Missing specification of a launch type (missing plug-in)
    Incorrect launch configuration XML