Eclipse 3.7, Ant, Java 1.7

Question

I went through and uninstalled all Java from my computer. Then I installed JavaSE JDK1.7. I then modified Eclipse configuration so it would start and opened it up. I have an Ant

Answer 1

Delete the "C:\Users\%USERNAME%\workspace.metadata.plugins\org.eclipse.debug.core.launches\%PROJECT_NAME% build.xml.launch file"

That solved problem for me.

Answer 2

In Eclipse, click the ant file -- Run As -- External Tools Configuration and click on the JRE tab.

Select "Run in the same JRE as the workspace"

Answer 3

This is because you still have the old JDK configured as JRE in the External Tools Configuration" in eclipse - open it via the arrow menu next to this button in the toolbar: , then change it to the Java 7 JDK.