How to eliminate serverless framework error Template format error - serverless-framework

Question

Testing, learning serverless framework. I'm trying to deploy simple/basic state machine with two simple lambda functions.
Serverless definition as follows:
frameworkVersion: '2'
app: state-machine
org: macdrorepo
service: state-machine
plugins:
- serverless-python-requirements
- serverless-iam-roles-per-function
- serverless-step-functions
- serverless-pseudo-parameters
custom:
pythonRequirements:
dockerizePip: non-linux
slim: true
zip: true
provider:
name: aws
runtime: python3.8
region: eu-central-1
stage: ${opt:stage, 'testing'}
timeout: 30
package:
individually: true
exclude:
- node_modules/**
- .git/**
- .venv/**
functions:
processpurchase:
module: state-machine
memorySize: 128
stages:
- testing
- dev
handler: ProcessPurchase.process_purchase
processrefund:
module: state-machine
memorySize: 128
stages:
- testing
- dev
handler: ProcessRefund.process_refund
stepFunctions:
validate: true
stateMachines:
TransactionChoiceMachine:
name: ChoiceMachineTest-${self:provider.stage}
dependsOn: CustomIamRole
definition:
Comment: "Purchase refund choice"
StartAt: ProcessTransaction
States:
ProcessTransaction:
Type: Choice
Choices:
- Variable: "$.TransactionType"
StringEquals: PURCHASE
Next: PurchaseState
- Variable: "$.TransactionType"
StringEquals: REFUND
Next: RefundState
PurchaseState:
Type: Task
Resource:
Fn::GetAtt: [processpurchase, Arn]
End: true
RefundState:
Type: Task
Resource:
Fn::GetAtt: [processrefund, Arn]
End: true
During deploy, sls is saying my state machine definition is ok: State machine "TransactionChoiceMachine" definition is valid
My environment information:
Your Environment Information ---------------------------
Operating System: linux
Node Version: 12.20.0
Framework Version: 2.14.0
Plugin Version: 4.1.2
SDK Version: 2.3.2
Components Version: 3.4.3
Setup SLS_DEBUG=* is not helping me much as I do not know js unfortunately.
After serverless deploy command, I'm getting error:
Error: The CloudFormation template is invalid: Template format error: Unresolved resource dependencies [CustomIamRole] in the Resources block of the template

Answer 1

Looks like you are referencing something called CustomIamRole in your state machine creation but I cannot see it being created anywhere in the yaml file. Either create the role and use it in creation or remove the depends on part.