I recently updated the React Native app I have been working on for a while from RN 0.47 to 0.55. I’ll admit I was a bit callous about the update and hadn’t really looked at the change log, but hey, version control does give one a foolish sense of bravado.
Anyway, needless to say there were issues. As of RN 0.55.4, the `setJSMainModuleName` has been renamed to `setJSMainModulePath` and it took me a bit of sleuthing to figure that out (Find the Github commit here)
However a bigger issue came up when I tried to package the app after resolving the compile errors.
Turns out the new Metro packager cannot follow symlinks, like those created by
This was a total fail for me, since my app uses local npm modules to hold pieces of common code for the web and mobile clients.
Thankfully someone did come up with a bit of a hack that generates absolute paths for all symlinked libraries and launches the cli.js file of the packager with a config file with the list of absolute paths.
It works for now, but hopefully this bug will get fixed soon.