TemplateAssertionError, not sure what happens

[ghost]

I met this error, but I can not figure out what happens, could you please help check?

TASK: [grafana | Configure Grafana] *******************************************
fatal: [grafana02.rti.iot] => {'msg': "TemplateAssertionError: no test named 'mapping'", 'failed': True}
fatal: [grafana02.rti.iot] => {'msg': "TemplateAssertionError: no test named 'mapping'", 'failed': True}

the site.yml should be:

• hosts: monitorserver
  roles:
  • role: yumrepo

    Configure the grafana YUM repo

    yumrepo_repos:
    grafana:
    name: Grafana repo
    baseurl: https://packagecloud.io/grafana/stable/el/6/x86_64
    gpgcheck: 0
  • role: grafana

    Allow grafana to bind to TCP port <1024

    grafana_allow_low_port: false

    Changing port nunmber from the default 3000 to 80

    grafana_server_http_port: 3000

[jtyr]

The same error was reported here:
picotrading/config-encoder-macros#1

Please update your jinja2 and the problem should disappear.

[ghost]

it works!! thanks a lot for your quick response