I just installed ARIA on Centos 7 and I get the same error: Storing service template my-service-template...
*AttributeError*: 'NoneType' object has no attribute '_get_properties' File "/usr/lib/python2.7/site-packages/aria/parser/consumption/consumer.py", line 70, in consume consumer.consume() File " /usr/lib/python2.7/site-packages/aria/parser/consumption/validation.py", line 30, in consume self.context.presentation.presenter._validate(self.context) File " /usr/lib/python2.7/site-packages/aria_extension_tosca/simple_v1_0/presenter.py", line 65, in _validate self.service_template._validate(context) File " /usr/lib/python2.7/site-packages/aria/parser/presentation/presentation.py", line 193, in _validate validate_known_fields(context, self) File "/usr/lib/python2.7/site-packages/aria/parser/presentation/utils.py", line 110, in validate_known_fields field.validate(presentation, context) File "/usr/lib/python2.7/site-packages/aria/parser/presentation/fields.py", line 409, in validate self.default_validate(presentation, context) File "/usr/lib/python2.7/site-packages/aria/parser/presentation/fields.py", line 524, in default_validate self.validate_value(value, context) File "/usr/lib/python2.7/site-packages/aria/parser/presentation/fields.py", line 540, in validate_value inner_value._validate(context) File " /usr/lib/python2.7/site-packages/aria_extension_tosca/simple_v1_0/types.py", line 654, in _validate self._get_capabilities(context) File "/usr/lib/python2.7/site-packages/aria/utils/caching.py", line 84, in __call__ return_value = self.func(*args, **kwargs) File " /usr/lib/python2.7/site-packages/aria_extension_tosca/simple_v1_0/types.py", line 639, in _get_capabilities return FrozenDict(get_inherited_capability_definitions(context, self)) File " /usr/lib/python2.7/site-packages/aria_extension_tosca/simple_v1_0/modeling/capabilities.py", line 90, in get_inherited_capability_definitions merge_capability_definition_from_type(context, presentation, capability_definition) File " /usr/lib/python2.7/site-packages/aria_extension_tosca/simple_v1_0/modeling/capabilities.py", line 170, in merge_capability_definition_from_type type_property_defintions = the_type._get_properties(context) *Validation issues:* 0: 'NoneType' object has no attribute '_get_properties' *AttributeError*: 'NoneType' object has no attribute '_get_properties' 4: unknown parent type "tosca:Root" in "WebServer" @"/home/centos/incubator-ariatosca/examples/hello-world/hello-world.yaml":6:19 4: "type" refers to an unknown capability type in "host": 'tosca:Container' @"/home/centos/incubator-ariatosca/examples/hello-world/hello-world.yaml":9:15 4: unknown parent type "tosca:WebApplication" in "WebApp" @"/home/centos/incubator-ariatosca/examples/hello-world/hello-world.yaml":12:19 Failed to parse service template Also, the gettingstarted.md file in the website repository is using the wrong name for the hello-world blueprint. It's missing the hyphen. I'll add the issue tonight. I clone the master branch to try the hello-world example. To install ARIA, I executed: pip install apache-ariatosca[ssh] -- Miguel Jimenez, PhD student Department of Computer Science University of Victoria Engineering/Computer Science Building (ECS), Room 412 Victoria, BC V8W 3p6 Canada On Mon, Nov 27, 2017 at 2:24 PM, Tal Liron <t...@cloudify.co> wrote: > Tom, the specific problems we had were not with installation, but rather in > running workflows. Have you tried to install the Hello World example? > > On Mon, Nov 27, 2017 at 2:54 PM, Thomas Nadeau <tnadeaua...@gmail.com> > wrote: > > > > > I took an action during the grooming to verify the installation > of > > the latest PIP artifacts. > > I was able to install successfully on Ubuntu 16.04 LTS just now. > > > > —Tom > > > > > > >