Expecting "int", got "string" on property Timeout on Lambda Function

[yyolk]

I'm receiving an error when providing a Timeout via a !Ref

The resource I'm receiving the error on:

 CustomAuthorizerLambdaFunction:
   Type: AWS::Serverless::Function
   Properties:
     CodeUri: ./code.jar
     Handler: someClass
     Runtime: java8
     Timeout: !Ref FunctionTimeout
     VpcConfig:
       SecurityGroupIds:
         - !Ref LambdaVPCSecurityGroup
       SubnetIds: !Ref Subnets
     MemorySize: 512
     Environment:
       Variables:
         REDIS_HOST: !Ref RedisHost
         REDIS_PORT: "6379"
         DEFAULT_DB_TIMEOUT: !Ref DBIdleTimeout
     Policies:
       - AWSLambdaVPCAccessExecutionRole
       - AWSXrayWriteOnlyAccess
     Tags:
       Department: engineering
       Application: customer-api
       Service: authorizer-processing

the error I receive:

ERROR: Resource "CustomAuthorizerLambdaFunction", property "Timeout": Expecting "int", got "string" (line: 278; col: 6)

[PaulMaddox]

Hi @yyolk,

Currently support for CloudFormation Intrinsic Functions is less than ideal in SAM Local (specifically the goformation library we're using to parse/validate SAM templates).

This is something we're working hard on improving (see the 0.1.0 branch of the goformation library that's currently in-progress, and specifically this proposal).

In the meantime, in order to use SAM Local with this template, you'll have to remove the !Ref intrinsic functions, and just replace them with integer values.

[sanathkr]

Fixed in v0.2.0