Windows/Linux/Mac Eclipse plugin to compile and upload arduino sketches

Projects Libraries
988

Hey,

After using Sloeber 4.0 for a long time (Linux Ubuntu 16.04, 64 bit) I decided to try out V4.2.

But no matter what I do, I always get "Failed to create project" when I create a project. The stack trace is like this:

java.lang.NullPointerException
	at io.sloeber.core.tools.Libraries.findAllSubFolders(Libraries.java:77)
	at io.sloeber.core.tools.Libraries.findAllPrivateLibraries(Libraries.java:125)
	at io.sloeber.core.tools.Libraries.getAllInstalledLibraries(Libraries.java:198)
	at io.sloeber.core.tools.Libraries.addLibrariesToProject(Libraries.java:205)
	at io.sloeber.core.api.BoardDescriptor.createProject(BoardDescriptor.java:587)
	at io.sloeber.ui.wizard.newsketch.NewSketchWizard.createProjectWrapper(NewSketchWizard.java:124)
	at io.sloeber.ui.wizard.newsketch.NewSketchWizard$1.execute(NewSketchWizard.java:93)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.lambda$0(WorkspaceModifyOperation.java:107)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2240)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2267)
	at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:128)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:437)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:353)
	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:980)
	at io.sloeber.ui.wizard.newsketch.NewSketchWizard.performFinish(NewSketchWizard.java:98)

What can I do to investigate this further?
-- Kees