can't find listEvents on object (ROOT_QUERY)

I have just installed the project and fortunately managed to build it. But when I create the first Upcoming Event I get the error: can't find listEvents on object (ROOT_QUERY)

I googled and found a possible solution here:
apollographql/apollo-client#1701

I managed to build the app a couple of weeks ago but then I don't had this error, instead I got error when adding comments to the first event and then everything was gone.

[wilbyang]

I have the same issue when running this sample