node_modules not included in layers

[naveen-murali]

Issue Description: After upgrading to version v2.8.5 of serverless-layers, the plugin fails to include the node_modules directory in its generated layers.

Steps to Reproduce:

1. Upgrade serverless-layers to v2.8.5.
2. Deploy a serverless application that utilizes layers.
3. Verify the contents of the deployed layers.

Expected Behavior: The layers should contain the node_modules directory, including all dependencies required by the specified packages.

Actual Behavior: Upon inspection of the deployed layers, we can see that the node_modules directory is missing.

Workaround: Reverting to version v2.7.0 of serverless-layers resolves the issue, as the node_modules directory is correctly included in the generated layers.

Environment:

• Serverless Framework version: 3.38.0
• Node.js version: 18.17.1
• NPM Version: 9.6.7

Screenshot: Here you can observe that the total layer size is much less than it should be.

[sabotageivet123]

Same here. The latest version generates a layer without node_modules, it contains just package-lock.json file.

[JoseFortunato]

Same here. I downgrade version and its working fine...

[rsi-mrobinson]

Same here, downgraded to 2.7.0. I also saw an sdk error on the latest version when trying to run serverless deploy

... ○ Created layer package /path/to/Developer/packages/api/.serverless/layer.zip (0.2 MB)
... ○ Uploading layer package...
... ○ OK...
ServerlessLayers error:
    Action: Lambda:publishLayerVersion
    Params: {"Content":{"S3Bucket":"mybucket","S3Key":"serverless/blah/blah/layers/layer.zip"},"LayerName":"layername","Description":"created by serverless-layers plugin (123456789)","CompatibleRuntimes":["nodejs"],"CompatibleArchitectures":["x86_64","arm64"]}
AWS SDK error:
    Could not find API configuration lambda-2015-03-31

[jeanoliveira92]

Im too. I have the same problem. I downgraded too to 2.7.0 and still showing error on deploy =(

... ○ Uploading layer package...
... ○ OK...
ServerlessLayers error:
Action: Lambda:publishLayerVersion
    Params: {"Content":{"S3Bucket":"serverless","S3Key":"serverless/service/dev/layers/altu-service-dev-nodejs-serverless.zip"},"LayerName":"altu-service-dev-nodejs-serverless","Description":"created by serverless-layers plugin (1170cc4a8683d81ff4c3125ba5f45457)","CompatibleRuntimes":["nodejs20.x"],"CompatibleArchitectures":["x86_64","arm64"]}
AWS SDK error:
    Could not find API configuration lambda-2015-03-31
error
Running "serverless" from node_modules

@agutoli help us please. The project stop to upload beacause this problem. Sorry and thanks ^^

Updated: @rsi-mrobinson i changed the "serverless-layers" from devDependencies to dependencies and set the version to "2.7", yes without the third number and worked to me! \O/

[rajeevbbqq]

If anyone is facing issues even after downgrading to 2.7.0 then cross-check package.json by

serverless-layers: 2.7.0 remove ^ from serverless layers if it is there!

[OmarKhattab]

Related to #166

[fl-wxiao]

I made localized modifications to the source code. This is not safe, but at least it will not prevent the normal deployment of the service.