Unsupported top level event type "topSvgLayout" dispatched

[joprice]

After upgrading to the latest react native 0.81.4 and 15.12.1 or the 15.13.0, my app now crashes on boot with Unsupported top level event type "topSvgLayout" dispatched. I get a c++ exception with not much of a helpful trace

Error: Unsupported top level event type "topSvgLayout" dispatched, js engine: hermes, stack:
extractEvents@235:15919
anonymous@235:113305
tn@235:115617
rn@235:18911
anonymous@235:113112

I didn't submit an issue since it wants a snack or repro link and I haven't been able to minimize it yet.

[kacperzolkiewski]

It's possible that this issue is due to the fact that you didn't rebuild the app after the upgrade, so you have a JavaScript version from 15.13.0 and a native version from 15.12.1.

In addition to rebuilding your app, I recommend clearing out your node_modules and the build folders to ensure you have a clean space to work with after the upgrade.

[joprice]

Small correction is that downgrading to 15.12.1 does fix it so it's not an issue with the latest react native, but probably like you suspect some local artifact hanging around. (I had my package.json specification too loose before and my lock file was still using 15.13.0 when trying to revert the upgrade). I'll make sure that both the pod lock and package lock are in sync before and I've wiped the state before reporting back again.