0.2.19 -> 0.2.20 breaks serverless offline start

[bebbi]

Upgrading from 0.2.19 to 0.2.20 and any later release breaks the command

serverless offline start

serverless offline still works.

I'm using serverless-webpack

plugins:
  - serverless-webpack
  - serverless-dynamodb-local
  - serverless-offline

and versions are:
sls-offline: 3.15.3
serverless-webpack: 2.2.2 and I've tried other versions with same result.
serverless: 1.20.2

I don't see the release tags in this repo unfortunately. Also, the error is a bit unspecific:

SLS_DEBUG=* node_modules/.bin/serverless offline start
Serverless: WARNING: Plugin ServerlessWebpack uses deprecated hook before:deploy:createDeploymentArtifacts,
                     use package:createDeploymentArtifacts hook instead
Serverless: WARNING: Plugin ServerlessWebpack uses deprecated hook after:deploy:createDeploymentArtifacts,
                     use package:createDeploymentArtifacts hook instead
Serverless: Bundling with Webpack...
Time: 2423ms
     Asset    Size  Chunks             Chunk Names
handler.js  222 kB       0  [emitted]  main
Serverless: Watching with Webpack...
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: spawn java ENOENT
    at exports._errnoException (util.js:1018:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:367:16)
    at _combinedTickCallback (internal/process/next_tick.js:80:11)
    at process._tickDomainCallback (internal/process/next_tick.js:128:9)

[HyperBrain]

Error: spawn java ENOENT

That looks like the java executable could not be found. Can it be that dynamodb-local tries to start Java?

[HyperBrain]

According to the plugin requirements you need a JRE (I assume accessible through your path settings in the environment).

[bebbi]

Not at my machine but any chance that a java related requirement could be different from 0.2.19? Latter works just fine.

…

On 23 Aug 2017, at 12:44, Frank Schmid ***@***.***> wrote: According to the plugin requirements you need a JRE (I assume accessible through your path settings in the environment). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[paqman]

Try running serverless dynamodb install.
Actually, the plugins seems to "lost" the reference to the dynamodb-local executable after any change to the package.json (after running yarn add for example)

[prestontighe]

Randomly I get this this error. Uninstalling dynamodb and reinstalling it solves the problem. I would really like to know what the root of the problem is.

[bebbi]

Thanks @paqman and @TooSick. Leaving this open for owners to track.

[btburton42]

@HyperBrain a co-worker had this same error today on his Mac, then he patch upgraded Java and that went away. He got the whole webpack->db->sls instance to start, tables seeded fine, but whenever he made a post to an endpoint it would just hang. Mine is working fine, btw. Same package-lock.json, same node-modules versions. You ever find a solution?

[HyperBrain]

@btburton42 I only commented here as maintainer of serverless-webpack to add some thoughts to the issue 😄 . Originally @bebbi came up with the issue over there. @bebbi did you manage to solve it or did you also experience the hangs?

[prestontighe]

@btburton42 Try uninstalling some npm package and reinstalling something. Let me know if the error comes back.

[btburton42]

@TooSick coworker tried rm'ing and reinstalling but no luck. he is using nvm, think that might do it?

[prestontighe]

@btburton42 do sls dynamodb remove && sls dynamodb install

[btburton42]

@TooSick thanks! will do on monday and let you know.

[btburton42]

@TooSick that didn't work for my colleague. I'll let him chime in when he has a moment of free time.

[danielesalvatore]

Hi everyone @btburton42 @TooSick @HyperBrain , did you manage to solve the issue?
I am experiencing the same error when I run a Docker container (node:6.10) using

• "serverless" : "1.24.1"
• "serverless-dynamodb-local": "0.2.26",
• "serverless-offline": "3.16.0"

However, it works when I run it from my host pc.

I tried many combination of installing/uninstalling npm packages and dynamodb local within the docker container.
In case you need for more information about the issue I will be happy to provide with more details.

Many thanks in advance

[prestontighe]

@danielesalvatore sls dynamodb remove && sls dynamodb install is the workaround I used for the time being.

[danielesalvatore]

@TooSick thank you very much for your reply. In my case the error was generated because the Docker container used didn't have Java on it. Thank you for your support

[prestontighe]

@danielesalvatore Step 1: install Java 🥇

[idmontie]

Looks like the bin folder in node_modules/dynamodb-localhost/dynamodb gets deleted for me occasionally, resulting in the Error: spawn java ENOENT error.

Not sure why it's getting deleted, but reinstalling does temporarily fix it.

I guess it's a matter of figuring out if this repo is causing the issue or if https://github.com/99xt/dynamodb-localhost is.

[byF]

This happens for me every time I add/remove new dependencies (using yarn)

[kalzoo]

For me, when I reorganized my package, this error would not go away despite running sls dynamodb remove && sls dynamodb install. Turns out that the installation wasn't happening at all - dynamodb-local expects to find the AWS-provided binary within .dynamodb/ in your package root, and I had to copy it there manually.

[sohailalam2]

For those who are stuck with this issue, the following solution worked for me

npm uninstall serverless-dynamodb-local
sls dynamodb uninstall

npm install serverless-dynamodb-local@0.2.30
sls dynamodb install

[shierro]

@sohailalam2 's workaround works. seemed to be broken somewhere between 0.2.36 & 0.2.31

[salmankhann]

Any updates on if this is fixed in the latest release?

[uccmen]

@salmankhann still happening. I had to lock dynamodb-localhost in package.json at v0.0.5 for this to work

"resolutions": {
    "dynamodb-localhost": "0.0.5"
}