Unable to pass output parameters from one workflowTemplate to a workflow via another workflowTemplate

Question

I've Two workflowTemplates generate-output, lib-read-outputs and One workflow output-paramter as follows

1. generate-output.yaml

apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: generate-output
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:

          # Generate Json for Outputs
          - name: read-outputs
            arguments:
              parameters:
                - name: outdata
                  value: |
                    {
                      "version": 4,
                      "terraform_version": "0.14.11",
                      "serial": 0,
                      "lineage": "732322df-5bd43-6e92-8f46-56c0dddwe83cb4",
                      "outputs": {
                        "key_alias_arn": {
                          "value": "arn:aws:kms:us-west-2:123456789:alias/tetsing-key",
                          "type": "string",
                          "sensitive": true
                        },
                        "key_arn": {
                          "value": "arn:aws:kms:us-west-2:123456789:alias/tetsing-key",
                          "type": "string",
                          "sensitive": true
                        }
                      }
                    }
            template: retrieve-outputs

    # Create Json
    - name: retrieve-outputs
      inputs:
        parameters:
          - name: outdata
      script:
        image: python
        command: [python]
        env:
          - name: OUTDATA
            value: "{{inputs.parameters.outdata}}"
        source: |
          import json
          import os
          OUTDATA = json.loads(os.environ["OUTDATA"])
          with open('/tmp/templates_lst.json', 'w') as outfile:
            outfile.write(str(json.dumps(OUTDATA['outputs'])))
        volumeMounts:
          - name: out
            mountPath: /tmp
      volumes:
        - name: out
          emptyDir: { }
      outputs:
        parameters:
          - name: message
            valueFrom:
              path: /tmp/templates_lst.json

2. lib-read-outputs.yaml

apiVersion: argoproj.io/v1alpha1
kind: WorkflowTemplate
metadata:
  name: lib-read-outputs
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          # Read Outputs
          - name: lib-wft
            templateRef:
              name: generate-output
              template: main

3. output-paramter.yaml

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: output-paramter-
spec:
  entrypoint: main
  templates:
    - name: main
      dag:
        tasks:
          # Json Output data task1
          - name: wf
            templateRef:
              name: lib-read-outputs
              template: main

          - name: lib-wf2
            dependencies: [wf]
            arguments:
              parameters:
                - name: outputResult
                  value: "{{tasks.wf.outputs.parameters.message}}"
            template: whalesay

    - name: whalesay
      inputs:
        parameters:
          - name: outputResult
      container:
        image: docker/whalesay:latest
        command: [cowsay]
        args: ["{{inputs.parameters.outputResult}}"]

I am trying to pass the output parameters generated in workflowTemplate generate-output to workflow output-paramter via lib-read-outputs

When I execute them, it's giving the following error - Failed: invalid spec: templates.main.tasks.lib-wf2 failed to resolve {{tasks.wf.outputs.parameters.message}}