Serverless-python-requirements: Packaging fails with Serverless Version 1.61.x

[ulfschulze]

After upgrading the Serverless Framework Version to 1.61.x the packaging fails with the following error:

Serverless: Generated requirements from /path/to/requirements.txt in /path/to/.serverless/requirements.txt...
Serverless: Using static cache of requirements found at /home/ubuntu/.cache/serverless-python-requirements/98230c43d557f2de15b2896aab825590e262c81f5024fe42d48dbe9c4f848587_slspyc ...
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Injecting required Python packages to package...

Type Error ---------------------------------------------

TypeError: Cannot read property 'length' of undefined
at DataWorker.emit (/path/to/node_modules/jszip/lib/stream/GenericWorker.js:121:54)
at DataWorker.end (/path/to/node_modules/jszip/lib/stream/GenericWorker.js:65:18)
at DataWorker._tick (/path/to/node_modules/jszip/lib/stream/DataWorker.js:92:21)
at DataWorker._tickAndRepeat (/path/to/node_modules/jszip/lib/stream/DataWorker.js:72:10)
at Immediate. (/path/to/node_modules/jszip/lib/utils.js:381:18)
at processImmediate (internal/timers.js:439:21)
at process.topLevelDomainCallback (domain.js:130:23)

 For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

Get Support --------------------------------------------
Docs: docs.serverless.com
Bugs: github.com/serverless/serverless/issues
Issues: forum.serverless.com

Your Environment Information ---------------------------
Operating System: linux
Node Version: 12.13.1
Framework Version: 1.61.2
Plugin Version: 3.2.7
SDK Version: 2.3.0
Components Core Version: 1.1.2
Components CLI Version: 1.4.0

[jgroom33]

I ran into the same issue. Resolved with:
npm i -g serverless@"<1.61.0"

[danielbayerlein]

Same problem with serverless version 1.63.0. Downgrade to version 1.60.5 fixes the problem temporarily.

[jsaedtler]

It's still happening in 1.67.0.

[jgroom33]

this seems to be resolved in serverless 1.69.3

Can anyone else confirm?

[ulfschulze]

Right now I can just find version 1.69.0 and this one doesn't still work in my case

[jgroom33]

i was incorrect. serverless version 1.69.0 that is working for me now

version 5.1.0 of serverless-python-requirements

[danielbayerlein]

{
  "serverless": "^1.69.0",
  "serverless-python-requirements": "^5.1.0"
}

Works for me after I delete the yarn.lock file and the node_modules folder.

[ulfschulze]

Even after deleting the lock file and the node modules folder I get the following output:

Serverless: Generated requirements from ./requirements.txt in .serverless/requirements.txt...
Serverless: Using static cache of requirements found at /Users/xxx/Library/Caches/serverless-python-requirements/98230c43d557f2de15b2896aab825590e262c81f5024fe42d48dbe9c4f848587_slspyc ...
Serverless: Packaging service...
Serverless: Excluding development dependencies...
Serverless: Injecting required Python packages to package...

  Type Error ---------------------------------------------

  TypeError: Cannot read property 'length' of undefined
      at DataWorker.emit (/Users/xxx/dev/repos/auth/node_modules/jszip/lib/stream/GenericWorker.js:121:54)
      at DataWorker.end (/Users/xxx/dev/repos/auth/node_modules/jszip/lib/stream/GenericWorker.js:65:18)
      at DataWorker._tick (/Users/xxx/dev/repos/auth/node_modules/jszip/lib/stream/DataWorker.js:92:21)
      at DataWorker._tickAndRepeat (/Users/xxx/dev/repos/auth/node_modules/jszip/lib/stream/DataWorker.js:72:10)
      at Immediate.<anonymous> (/Users/xxx/dev/repos/auth/node_modules/jszip/lib/utils.js:381:18)
      at processImmediate (internal/timers.js:456:21)
      at process.topLevelDomainCallback (domain.js:137:15)

     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

     Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

     Your Environment Information ---------------------------
     Operating System:          darwin
     Node Version:              14.1.0
     Framework Version:         1.69.0
     Plugin Version:            3.6.9
     SDK Version:               2.3.0
     Components Version:        2.30.6

Should I may use a different node version? Any suggestion would be appreciated.

[jgroom33]

This is my environment:

~/src$ node --version
v13.12.0

~/src$ serverless --version
Framework Core: 1.69.0
Plugin: 3.6.9
SDK: 2.3.0
Components: 2.30.5

[justinram11]

Also still seeing this with serverless 1.7.0 and serverless-python-requirements 5.1.0:

Serverless: Injecting required Python packages to package...

  Type Error ---------------------------------------------

  TypeError: Cannot read property 'length' of undefined
      at DataWorker.emit (/xxx/node_modules/jszip/lib/stream/GenericWorker.js:121:54)
      at DataWorker.end (/xxx/node_modules/jszip/lib/stream/GenericWorker.js:65:18)
      at DataWorker._tick (/xxx/node_modules/jszip/lib/stream/DataWorker.js:92:21)
      at DataWorker._tickAndRepeat (/xxx/node_modules/jszip/lib/stream/DataWorker.js:72:10)
      at Immediate.<anonymous> (/xxx/node_modules/jszip/lib/utils.js:381:18)
      at processImmediate (internal/timers.js:456:21)
      at process.topLevelDomainCallback (domain.js:137:15)

  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

  Your Environment Information ---------------------------
     Operating System:          darwin
     Node Version:              12.16.3
     Framework Version:         1.70.0
     Plugin Version:            3.6.11
     SDK Version:               2.3.0
     Components Version:        2.30.10

Can also confirm that 1.60.5 works without any issues

[jonaswitt]

The combination of serverless 1.71.1 / Node 12.16.3 works for me; whereas serverless 1.64.0 did not work (which matches the reports above that the problem started in 1.61.0 probably). All using serverless-python-requirements 5.1.0.

[nexeh]

I am still plagued with this issue. I have been locked on version 1.35.1 of serverless and each time i got to upgrade i have this issue. Any traction on resolving this issue?

[nexeh]

@dschep Are you aware of any work around for this? Or any insight on what the root cause might be? Seems like I have been locked on a old version of serverless long enough that its causing a problem for me. I'm assuming this issue doesn't plague everyone or there would be much more traction. The stack doesn't mean much to me but i can make some educated guesses that this is during the zip process and that maybe the list of files to zip is undefined?

[nexeh]

Today i noticed that if i remove the serverless-s3-sync that this issue is resolved.

[Go-Pomegranate]

I think in my case the reason for that error was that I added manually some plugins in plugin section of serverless.yaml

plugins:
  - serverless-plugin-scripts
  - serverless-tag-cloud-watch-logs
  - serverless-python-requirements <= added manually

After deleting it and adding with sls plugin install --name plugin-name everything went fine. Hope it will help sb.