TypeError: Cannot read property 'evaluate' of undefined

[bahachammakhi]

Describe the bug
AppSync Simulator: TypeError: Cannot read property 'evaluate' of undefined.

Iam learning a serverless framework right now so I used a start template and added appsync-simulator on it , thank you for your time guys.

This is my serverless.yml file

service:
  name: ${self:custom.serviceName}-backend


plugins:
  - serverless-webpack
  - serverless-appsync-plugin
  - serverless-pseudo-parameters
  - serverless-plugin-aws-alerts
  - serverless-deployment-bucket
  - serverless-appsync-simulator
  - serverless-offline

# The `provider` block defines where your service will be deployed
provider:
  name: aws
  runtime: nodejs12.x
  region: us-east-1
  stage: dev
  memorySize: ${self:custom.env.lambdaMemorySize.${self:provider.stage}, self:custom.env.lambdaMemorySize.default} # optional, in MB, default is 1024
  timeout: ${self:custom.env.lambdaTimeout.${self:provider.stage}, self:custom.env.lambdaTimeout.default} # optional, in seconds, default is 6
  versionFunctions: false # optional, default is true
  logRetentionInDays: 14 # Set the default RetentionInDays for a CloudWatch LogGroup
  deploymentBucket:
    name: ${self:custom.serviceName}-${self:provider.stage}-deploys
    serverSideEncryption: AES256
  apiGateway:
    binaryMediaTypes:
      - "*/*"

package:
  individually: true
  excludeDevDependencies: true
  
custom:
  appsync-simulator: # appsync-offline configuration
    location: ".webpack/service/src" # use webpack build directory
  env:
    appSyncLogLevel:
      dev: ERROR
      stage: ERROR
      prod: ERROR
      default: ALL
    # for some reason pseudo-parameter #{AWS::AccountId} does not work ${file(../serverless.yml):custom.name}
    lambdaMemorySize:
      dev: 256
      stage: 256
      prod: 512
      default: 128
    lambdaTimeout:
      dev: 6
      stage: 6
      prod: 8
      default: 4
    accountId:
      prod: xxxxxxxxxxxxx # TODO: change xxxxxxxxxxxxx to your prod accountId
      default: xxxxxxxxxxxxx # TODO: change xxxxxxxxxxxxx to your accountId
  region: "${self:provider.region}"
  accountId: ${self:custom.env.accountId.${self:provider.stage}, self:custom.env.accountId.default}
  serviceName: "xxx" # TODO: change xxx to your name
  name: "${self:service.name}-${self:provider.stage}"
  nameU: "${self:custom.serviceName}_backend_${self:provider.stage}"
  appSync: # appsync plugin configuration
    name: "smart-business-appsync"
    authenticationType: API_KEY
    serviceRole: "AppSyncServiceRole"
    dataSources: ${file(api/appsync/datasources.yml)}
    mappingTemplates: ${file(api/appsync/mappings.yml)}
   webpack:
     includeModules:
       forceInclude:
         - source-map-support
       forceExclude:
        - aws-sdk


functions: ${file(resources/lambda-functions.yml)}

# Create resources with separate CloudFormation templates
resources: ${file(resources/resources.yml)}

[appdatasoft]

@bahachammakhi We are also face the same issue on windows. Are you able to find solution to this?

[bahachammakhi]

@appdatasoft no solution till now waiting for the maintainer to respond .

[bboure]

Sorry Guys, I missed this somehow.

I suspect the error comes from the cfn-resolver-lib dependency.
It is hard to tell where exactly, though, there are several evaluate methods.

It is probably a resource in your resources resources.yml file.

Would you be able to debug and pinpoint the exact line that throws the error?

It either requires a fix in the aforementioned package or you should pre-resolve it in your serverless file

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.