I have installed this app without problem.
I tryed to upgrade my vaadin version to 7.1.7 but when I try to compile the widgetset I get this error:
Can you Help me?
I can only successfully install this using the download and install by hand method (using the Liferay Marketplace in the control panel does not work.)
It will download any version of Vaadin successfully. It will only compile 7.0.7 widgetset.