OWL2VOWL service error

[PaulSchuler]

I am trying to run WebVOWL local and i used the Development setup guide (step 1-6) because i want to make some modifications.

The ontologies that already exist (FOAF, etc.) work well. But when I load my own ontology I have to use O2V where I get an error.

I get the following message in the menu bar:
Retrieving ontology from file: 01.rdf
Could not establish connection to OWL2VOWL service
Trying to convert with other communication protocol.

Error: GET http://192.168.2.73:3000/serverTimeStamp 404 (Not Found)

This is the part from the error message:
responseURL: "http://192.168.2.73:3000/serverTimeStamp"
responseXML: null
status: 404
statusText: "Not Found"

As I said, I only performed the 6 steps of the guide and did nothing else with O2V. Is that necessary? If so how can I implement this?

[vitalis-wiens]

Dear Paul,

This Error is expected, since you have started webvowl as a stand-alone instance without OWL2VOWL

You need to run also owl2vowl converter locally as a process which can receive the ontology and convert it and send it back to the frontend component

General aspects

• WebVOWL does not provide ontology conversion
  • you can locally convert the owl file to a json file (owl2vowl.jar) and upload this json file (which uses webvowl representation of the ontology)
• OWL2VOWL provides the conversion
• If you want to convert ontologies via frontend you need to run the ow2lvowl process as a server
  https://github.com/VisualDataWeb/OWL2VOWL#build-the-war

I hope this help