Stencil: Getting EEXIST errors on serve (0.18.1)

[FdezRomero]

Stencil version:

 @stencil/[email protected]

I'm submitting a:

[x] bug report
[ ] feature request
[ ] support request => Please do not submit support requests here, use one of these channels: https://stencil-worldwide.herokuapp.com/ or https://forum.ionicframework.com/

Current behavior:

Running npm start on an Ionic PWA Toolkit project results in the following error in the console and browser. It seems to be related to the latest changes in copy tasks in 0.18.1. Previous versions are not affected.

EEXIST: file already exists, copyfile
           '/Users/rodrigo/Git/ionic-pwa/node_modules/ionicons/dist/collection/icon/svg/index.esm.d.ts' ->
           '/Users/rodrigo/Git/ionic-pwa/www/build/app/svg/index.esm.d.ts'

Deleting the www directory temporarily solves the issue, until npm start is used again.

Expected behavior:

The content in www is overwritten and the Stencil app is served without errors.

Steps to reproduce:

1. npm init stencil
2. Choose ionic-pwa
3. cd ionic-pwa
4. npm install -D @stencil/core@latest
5. npm start
6. An EEXIST error is shown.

Related code:
N/A

Other information:

Might be related to https://github.com/ionic-team/stencil/commit/e51c0a4c7e63e27ee72fc34754cd602391ff7056

[shreeshbhat]

After updating to Stencil 0.18.1, getting the following error in Chrome's console on npm start :
SyntaxError: Identifier 'h' has already been declared "http://localhost:3333/build/app/app-root.md.entry.js"
White screen for UI.
node : v10.13.0
npm : 6.4.1
Might be related to same issue.

[sslotsky]

Getting the same error as @shreeshbhat, happens when I delete a component.

[matteocusinato]

Getting the same error after updating to Stencil 0.18.1, on 0.18.1-0 works fine.

[jocubeit]

Agree with @matteocusinato, rolling back from 0.18.1 to 0.18.0 and the issue disappears. Interestingly, I had the same issue before upgrading to 0.18.0 too.

[simonhaenisch]

BTW this only happened to me after upgrading to node 10 or 11, with node 8 it still works fine. So that's an alternative to downgrading stencil ;)

[Nightbr]

Hey, same issue on node 10 with stenciljs 0.18.1. I will try to downgrade.
Link to https://github.com/ionic-team/stencil-app-starter/issues/66

[Nightbr]

Some tests:

• Not working on 0.18.1
• Working on 0.18.0

Bugs only with Node >= 10.

Workaround:

• Downgrade to node 8
• Downgrade to stenciljs 0.18.0

If you need more information and debug, let me know 👌

[manucorporat]

Fixes in master! we will release a new release soon shipping the fix!