Missing lock file

[AlexErrant]

Could you please add and un-gitignore the package-lock.json?

The docs state:

This file is intended to be committed into source repositories

I'm currently getting an error:

Uncaught TypeError: _tmpl$ is not a function
    at index.tsx:15:5
    at App (index.tsx:34:57)
    at dev.js:519:12
    at untrack (dev.js:425:12)
    at Object.fn (dev.js:515:37)
    at runComputation (dev.js:694:22)
    at updateComputation (dev.js:679:3)
    at devComponent (dev.js:525:3)
    at createComponent (dev.js:1227:10)
    at get children [as children] (index.tsx:40:16)

which is annoying to debug without knowing what exact package versions you're using.