Parcel: UnhandledPromiseRejectionWarning

[gweinfurther]

I just installed parcel. When running parcel in live or build mode, I get this message:

UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SyntaxError: 'super' keyword unexpected here

Running on Windows 10 in Chrome 63.
Parcel 1.5

[ZWkang]

i got it too~

[akosasante]

Same here. I also encountered #642.
Running on Ubuntu 16.04
Parcel 1.50

[sinout]

Same here. Encountered after update from v1.4.1 to 1.5.
node version 6.9.4.

[DeMoorJasper]

@sinout node.js 6 is currently not supported we are working to support it in the future

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[srph]

Having it as well. Just installed v1.5.

• Windows 10
• node v7.5.0

[DeMoorJasper]

@srph node 7 isnt supported yet either only node 8+ is currently supported

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[mdchristians]

Having the same issue.
Fresh install of Parcel on a fresh project. Node v8.9.3.

[katsos]

For anyone who has the same problem, you can use nvm for your project with "v8" wrote in its .nvmrc file until it is fixed.

[mdchristians]

@katsos My project has an .nvmrc implemented already using 8.9.3...

[katsos]

@mdchristians don't forget to execute nvm use inside the folder from the same terminal that you are going to execute anything related to Node.

[mdchristians]

@katsos My .nvmrc file is being used. Runningnode -v outputs 8.9.3 within the project directory.

[mdchristians]

It's working with Node v8.5.0 so now I'm pretty sure it's an issue with something else...

[DepickereSven]

I have this problem to.

I have:
Node v8.9.4
Fresh install of Parcel

Every time I run it I get an other number in front of the error some examples:
(node:16656) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SyntaxError: 'super' keyword unexpected here
(node:4332) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SyntaxError: 'super' keyword unexpected here
(node:7572) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SyntaxError: 'super' keyword unexpected here
(node:24156) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): SyntaxError: 'super' keyword unexpected here

Anyone a suggestion?

[davidnagli]

@devongovett Do you think we should work towards adding support for Node 6? Should we reopen this issue to track this?

[DepickereSven]

I had an older node version and I updated to version 8.9.4 and I still got that error.

So how did I fixed it?
I uninstalled Nodejs en nvm and then reinstall nodejs.
If you do that It should work.

[gamebox]

I guess one issue I would have with this - I have the same issue on Node v7.8.0 - is that the "engine" -> "node" key in the package.json should be updated to reflect that you need 8+.

[tiberiucorbu]

Node 6.x is still an active LTS and it will benefit maintenance until April 2019.
https://github.com/nodejs/Release

[ocsen]

node 7 isnt supported yet either only node 8+ is currently supported ！！！
nvm use 9