YAML - Execute template in Deploymentjob - azure

Question

I'm currently trying to setup my complete build/release pipeline with yaml files.
First I tried with different stages (dev/staging/prod) and it worked.
Now I wanted to add an approval that the deploy doesn't not happen automatically on each system.
Therefore I added an environment in the TFS with an approval check.
But when I try to setup the yaml file I always get an error.
I don't know how to setup this properly.
This is my main yaml file called release-pipeline.yaml
trigger:
- master
pool:
name: POOL
stages:
- stage: BuildSolution
jobs:
- job: BuildSolutionJob
displayName: Build
workspace:
clean: all
steps:
- template: yaml/BuildSolution.yml
- template: yaml/CopyFiles.yml
- template: yaml/PublishArtifact.yml
- stage: DeployOn_STAGING_System
dependsOn: BuildSolution
jobs:
- job: Deploy_STAGING
- template: yaml/Deploy.yml
parameters:
Environment: 'SITE'
Staging: 1
- stage: Deploy_DEV_System
dependsOn: BuildSolution
jobs:
- deployment: Deploy_DEV
environment: ENVCHECK_DEV
strategy:
runOnce:
deploy:
steps:
- template: yaml/Deploy.yml
parameters:
Environment: 'SITE'
ViewDeploy: 1
This is my Deploy.yml file which i want to execute (only some snips):
parameters:
- name: Environment
type: string
- name: ProdSystem
type: number
default: 0
- name: Staging
type: number
default: 0
- name: ViewDeploy
type: number
default: 0
jobs:
- job:
variables:
artifactName: $[stageDependencies.BuildSolution.BuildSolutionJob.outputs['SetVariables.artifactName']]
version: $[stageDependencies.BuildSolution.BuildSolutionJob.outputs['SetVariables.version']]
steps:
- task: PowerShell#2
displayName: Display given parameters
inputs:
targetType: inline
script: >
Write-Host "ArtifaceName: " $(artifactName)
Write-Host "Environment for Deploy: " ${{ parameters.Environment }}
Write-Host "##vso[task.setvariable variable=isStaging]${{ parameters.Staging }}"
failOnStderr: true
When I try to execute I get the following error:
/release-pipeline.yml: Unexpected value 'parameters'.
How do I need to change this that it will work with the template in both cases, with and without the environment approval check?
I tried https://samlearnsazure.blog/2020/02/05/approvals-in-environments/
and of course different structure for the calling. But nothing helped.
In the tutorials they always have steps below the "deploy" but because I have different sites and environments I want/need the template file to save work.

Answer 1

I found another post which goes in the same direction.
I reworked my complete template so that I can use the approach of this: DevOps template with conditional manual approval job
It's not the same as I wanted, but it works.
My goal was that I don't want to create a environment if I have no checks on this site. Only for sites where I wanted the approval check.
With the above mentioned solution I need to create an environment for each site, independent if I have checks or not.