The "path" argument must be of type string or an instance of Buffer or URL. Received undefined

[stryker-sk]

Issue description

Recently tried to deploy with serverless and received this error despite not making changes to any path references. The only change since the deployment that worked earlier was to increase the memory on a lambda.

I see this error:

my-stack
    The "path" argument must be of type string or an instance of Buffer or URL. Received undefined

request error: #2 - CloudFormation.describeStackResource ValidationError: Resource ServerlessDeploymentBucket does not exist for stack my-stack
s: ValidationError: Resource ServerlessDeploymentBucket does not exist for stack my-stack
    at constructor.extractError (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/protocol/query.js:50:29)
    at constructor.callListeners (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/sequential_executor.js:106:20)
    at constructor.emit (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/sequential_executor.js:78:10)
    at constructor.emitEvent (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/request.js:686:14)
    at constructor.transition (/Users/my.user.serverless/releases/node_modules/aws-sdk/lib/request.js:22:10)
    at AcceptorStateMachine.AcceptorStateMachine.runTo (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/state_machine.js:14:12)
    at <anonymous> (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/state_machine.js:26:10)
    at constructor.<anonymous> (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/request.js:38:9)
    at constructor.<anonymous> (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/request.js:688:12)
    at constructor.callListeners (/Users/my.user/.serverless/releases/node_modules/aws-sdk/lib/sequential_executor.js:116:18)

Using: "serverless": "4.4.17",

Context

Only change since last success was memory size on lambda, but there was a recent release since then. The cloudformation S3 bucket still exists and is still in the cloudformation stack on AWS.

[czubocha]

Hi @stryker-sk, thanks for reporting.

Does the log include a stack trace for this error related to "path"? If so, could you share it?
Also, can you try pinning the version in serverless.yml with frameworkVersion: '4.4.17' and see if it works for you then?

[stryker-sk]

We have pinned the version for a while to ensure consistency in deployments:

service: my-stack

frameworkVersion: '4.4.17'

This is the stack:

✖ Stack my-stack failed to deploy (1s)
s:main: Finalizing
s: Sending batch of events [
  {
    "source": "sfcore.analysis.generated.v1",
    "event": {
      "actionSucceeded": false,
      "operatingSystem": "darwin",
      "architecture": "arm64",
      "cicd": false,
      "machineId": "***",
      "orgId": "***",
      "userId": "***",
      "isCompose": true,
      "projectType": "traditional",
      "cliOptions": [
        "stage",
        "aws-profile",
        "debug",
        "region"
      ],
      "source": "serverless@4.20.0",
      "actionName": "deploy",
      "configurationFileName": "serverless.yml",
      "resolvers": [
        "opt",
        "self",
        "param",
        "aws",
        "file",
        "sls"
      ],
      "providerRuntime": "nodejs20.x",
      "awsCfStackId": "arn:aws:cloudformation:us-east-1:***:stack/my-stack/***",
      "isEsbuildEnabled": false,
      "error": {
        "name": "TypeError",
        "message": "The \"path\" argument must be of type string or an instance of Buffer or URL. Received undefined",
        "stacktrace": "TypeError [ERR_INVALID_ARG_TYPE]: The \"path\" argument must be of type string or an instance of Buffer or URL. Received undefined\n    at readFile (node:fs:388:16)\n    at go$readFile (/Users/my.user/.serverless/releases/node_modules/graceful-fs/graceful-fs.js:118:14)\n    at Object.readFile5 (/Users/my.user/.serverless/releases/node_modules/graceful-fs/graceful-fs.js:115:12)\n    at <anonymous> (/Users/my.user/.serverless/releases/node_modules/universalify/index.js:9:12)\n    at new Promise (<anonymous>)\n    at Object.readFile5 (/Users/my.user.serverless/releases/node_modules/universalify/index.js:7:14)\n    at injectRequirements (/Users/my.user/.serverless/releases/4.20.0/serverless/lib/plugins/python/lib/inject.js:22:28)\n    at ServerlessPythonRequirements.injectAllRequirements (/Users/my.user.serverless/releases/4.20.0/serverless/lib/plugins/python/lib/inject.js:141:13)\n    at after (/Users/my.user/.serverless/releases/4.20.0/serverless/lib/plugins/python/index.js:240:35)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)",
        "code": "ERR_INVALID_ARG_TYPE"
      }
    }
  }
]

This was working 5 hours ago.

[stryker-sk]

Also, deploying a previous release branch that worked yesterday did not work either and had the same error.

[czubocha]

We've reverted the breaking change, so it should work properly now. Apologies for the inconvenience.

[stryker-sk]

Thank you, I can confirm it is working now 🙏

[czubocha]

Thanks for the confirmation, @stryker-sk. Also, we'd like to understand why version pinning doesn't seem to be working for you. Could you run serverless update and then serverless version in the service directory? It should print the version you specified in frameworkVersion in serverless.yml.