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From Ran Ziv <>
Subject Re: create_template
Date Sat, 08 Jul 2017 09:27:45 GMT
Hi DeWayne,

The error probably means that the ARIA TOSCA extension isn't properly
installed, and therefore the parser can't find a valid reader.
The error message could probably have been somewhat clearer.. Feel free to
create a JIRA issue over this (or I'll create one if you don't :)).

Note that the ARIA TOSCA extension gets installed when running "pip
install" over the apache-ariatosca project as expected - but when
installing in editable mode, a bug in setuptools causes only the main
("aria") package to get installed properly instead.
See this JIRA issue: - which
also describes the workaround.
(This is also documented on our Confluence)

Finally, you can run "make install-virtual" to install inside a Python
virtualenv, and that will also take care of making the mentioned workaround
for you, resulting in a proper installation of the TOSCA extension.
( See make target here: )


On Sat, Jul 8, 2017 at 7:10 AM, DeWayne Filppi <>

> I'm getting a validation error out of core.create_service_template, but it
> complains about there being no presenter, so I can't figure out what the
> error is (no details are dumped).  The code essentially copies the CLI
> code:
>   service_template_path = service_template_utils.get(
> service_template_path,
>  service_template_filename)
>   core = Core(model_storage, resource_storage, plugin_manager)
>   try:
>     core.create_service_template(service_template_path,
>                                  os.path.dirname(service_template_path),
>                                  template_name)

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