[Solved]Unexpected error (Bad Gateway) when uploading image to template with Mosaico or GrapheJS

[Camille]

Hi,
Since a few days (and it doesn't seem related to the last update : Mailtrain Package v1.7.0 App v1.24.1), I get this error "Unexpected error (Bad Gateway)" whenever I try to upload an image with Mosaico or GrapeJS.

With both editors, the logs tell me

Mar 17 14:47:53 fs.js:168
Mar 17 14:47:53 throw new ERR_INVALID_CALLBACK(cb);
Mar 17 14:47:53 ^
Mar 17 14:47:53
Mar 17 14:47:53 TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. Received undefined
Mar 17 14:47:53 at makeCallback (fs.js:168:11)
Mar 17 14:47:53 at Object.unlink (fs.js:1199:14)
Mar 17 14:47:53 at ReadStream.<anonymous> (/app/code/node_modules/jquery-file-upload-middleware/lib/uploadhandler.js:149:48)
Mar 17 14:47:53 at ReadStream.emit (events.js:327:22)
Mar 17 14:47:53 at ReadStream.EventEmitter.emit (domain.js:467:12)
Mar 17 14:47:53 at endReadableNT (internal/streams/readable.js:1327:12)
Mar 17 14:47:53 at processTicksAndRejections (internal/process/task_queues.js:80:21) {
Mar 17 14:47:53 code: 'ERR_INVALID_CALLBACK'
Mar 17 14:47:53 }
Mar 17 14:47:53 npm ERR! code ELIFECYCLE
Mar 17 14:47:53 npm ERR! errno 1
Mar 17 14:47:53 npm ERR! mailtrain@1.24.0 start: `node index.js`
Mar 17 14:47:53 npm ERR! Exit status 1
Mar 17 14:47:53 npm ERR!

The images actually get uploaded to /tmp.
Anyone having the same problem or any idea on what to investigate ?

Thanks !

[Camille]

Actually, I get the same problem with a fresh install of the app (Package v1.7.0
App v1.24.1).
Has anyone a working instance of this version?

[girish]

@camille Sorry for the delay, but I can reproduce the issue. Are you able to report the issue upstream at https://github.com/Mailtrain-org/mailtrain ? Mailtrain has not made a release in quite a while now (almost 2.5 years), so I am not sure what the development status of the project is.

FWIW, we still we use mailtrain but we just don't use that email builder. Instead, I have a template that I made from https://beefree.io/bee-free/ and then I pasted that html into the newsletter.

[girish]

The root cause of the issue is https://github.com/aguidrevitch/jquery-file-upload-middleware/issues/85

[girish]

I ended up deprecating nodejs version and it works after that.

[Camille]

Thanks @girish for the fix. I have reported the problem upstream : https://github.com/Mailtrain-org/mailtrain/issues/1030

[girish]

@camille thanks, I have left a note there. We can help them fix/update it if they have interest in keeping mailtrain 1 updated.