Launch configuration delegate loading error

I'm using Zend Studio 12.5 (fresh install) and I just installed MakeGood. When I try to run my tests I get the following error:

Launch configuration delegate loading error.

java.lang.ClassNotFoundException: com.zend.php.debug.core.launch.PHPExecutableExtendedLaunchDelegate cannot be found by com.piece_framework.makegood.launch_3.1.1.v201409021510
    at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
    at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
    at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at com.piece_framework.makegood.launch.MakeGoodLaunchConfigurationDelegate.getConfigurationDelegate(MakeGoodLaunchConfigurationDelegate.java:221)
    at org.eclipse.php.internal.debug.core.launching.PHPLaunchDelegateProxy.preLaunchCheck(PHPLaunchDelegateProxy.java:110)
    at com.piece_framework.makegood.launch.MakeGoodLaunchConfigurationDelegate.preLaunchCheck(MakeGoodLaunchConfigurationDelegate.java:140)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:840)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:739)
    at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1039)
    at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1256)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

I got this working before in Eclipse Luna and Mars. Am I forgetting something here?

piece / makegood

Launch configuration delegate loading error #83