Invariant Violation Target container is not a DOM element in Parcel project

[AWolf81]

🐛 bug report

Description of the problem

I'm getting an error message "Invariant Violation Target container is not a DOM element" for a Parcel project that I'm loading from Github. Not sure if it's related to my project setup.

#1737 looks related

After page load I'm getting that error message. Once I've edited a script file the preview reloads and it's rendering correctly.

How has this issue affected you? What are you trying to accomplish?

Preview is not usable after page load.

Link to sandbox: https://codesandbox.io/s/github/AWolf81/use-counter-hook-demo

Your Environment

Software	Name/Version
Сodesandbox	PROD-1561199685-a102c8493
Browser	Firefox 67.0.4 (64-Bit)
Operating System	Windows 10 Pro (64bit)

[lbogdan]

Hey @AWolf81 ,

Our parcel bundler expects index.html to be in the project's root - although we should probably look for it in src as well. Here's exactly the same (working) project, forked from that github repo and with index.html copied from src to /: https://codesandbox.io/s/use-counter-example-qlzgk .

[AWolf81]

@ibogdan thanks, I'll change the index.html location to the root folder. I think that's OK for the demo but it would be great to also have Codesandbox working with the file in src location.

A better error message would be good if that's possible. As I haven't seen that the location of the file is the problem.

[lbogdan]

Well, taking a better look at this, as far as parcel is involved, src is just an arbitrary folder with no special meaning. What we can do, though, is to look for an .html file in the main property of package.json.

As a side-note, explicitly loading the HTML also works: https://niclu.codesandbox.io/src/index.html .

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