"Gmail has stopped" dialog On my Samsung Galaxy S4 with Android 4.4.2, I get constantly a dialog saying "Gmail has stopped" (In french, actually : "Gmail s'est arrêté"). When I click OK, the message re-opens within less than a second.

I tried to restart my device, to no avail. I still get the message.

Anyone knows a solution?

Edit: just an update on how things started: I wanted to kill a bunch of tasks and ran Advanced Task Killer. I probably left Gmail selected and so killed it with the tasks I wanted to get rid of. And all hell broke lose...
Hmmm... An update for Gmail was waiting on Play. I installed it and everything works fine, now. Did I need the update to make it work properly (after an update on Google's servers, or after the last update of my system, for example), or was the update a convenient way to restart Gmail properly? I don't know.