Date: 2018may25 Product: ant Q. Eclipse: javac1.8 not found A. Apparently Ant can't do Java 1.8 So you need to visit:

Right click on build.xml > Run As... > Main > Arguments

Add:

-Dbuild.compiler=javac1.7

If you're wondering this is NOT stored in <workspace>\MyProgram but in <workspace>\.metadata\.plugins\org.eclipse.debug.core\.launches