Uncaught Error: Children.only() expects only one child.

[katopz]

It's occur when I try to add precat-compat and preact@beta on https://github.com/lvarayut/relay-fullstack

Maybe this not support yet?

[developit]

Is the error coming from one of the dependencies? preact-compat's Children.only() should match React's:
https://github.com/developit/preact-compat/blob/master/src/index.js#L138

Though really, we could make it a warning instead of an error. Not sure if that fixes the issue though.

[developit]

This should be fixed in 3.4.2!