Important Notice - Forums is archived

To simplify things and help our users to be more productive, we have archived the current forum and focus our efforts on helping developers on Stack Overflow. You can post new questions on Stack Overflow or join our Discord channel.

Product icon

Vaadin lets you build secure, UX-first PWAs entirely in Java.
Free ebook & tutorial.

GAE - NullPointerException at com.vaadin.ui.ConnectorTracker.removeUnregist

Miguel Angel
7 years ago Dec 04, 2015 9:33pm
Dyorgio Nascimento
7 years ago Dec 31, 2015 12:00pm

Same problem here... :(

Saugata Guha
7 years ago Mar 04, 2016 9:40pm
Dyorgio Nascimento
7 years ago Mar 06, 2016 1:56pm