[Backlogmanager] [FIWARE-JIRA] (HELP-17956) [fiware-askbot] Error in NGSI source operator: "Exception catched while processing preference changes"

[Fernando Lopez (JIRA)]

     [ https://jira.fiware.org/browse/HELP-17956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fernando Lopez reassigned HELP-17956:
-------------------------------------

    Assignee: Francisco de la Vega

> [fiware-askbot] Error in NGSI source operator: "Exception catched while processing preference changes"
> ------------------------------------------------------------------------------------------------------
>
>                 Key: HELP-17956
>                 URL: https://jira.fiware.org/browse/HELP-17956
>             Project: Help-Desk
>          Issue Type: Monitor
>            Reporter: Backlog Manager
>            Assignee: Francisco de la Vega
>
> Created question in FIWARE Q/A platform on 29-06-2021 at 15:06
> {color: red}Please, ANSWER this question AT{color} https://ask.fiware.org/question/1253/error-in-ngsi-source-operator-exception-catched-while-processing-preference-changes/
> +Question:+
> Error in NGSI source operator: "Exception catched while processing preference changes"
> +Description:+
> I am new in Fiware and I am doing a tutorial to configure a map widget. I run Wirecloud following the section "Running Wirecloud" (https://wirecloud.readthedocs.io/en/s...) 
> On the one hand, I have followed the steps in the section "SANITY CHECK PROCEDURES", but although the web map service is visible and I can mark a point, in the weather widget nothing is visible (It stays loading).
> I have tried to configure the operator but I don't know how I can know which is the NGSI Server URL.I have write: http://localhost:8001 because my Wirecloud port is 8001.
> In Wirecloud, I can read this information about the "NGSI Source", but I don´t understand the meaning of this:
> NGSI server URL: URL of the Orion Context Broker to use for retrieving entity information.
> NGSI proxy URL: URL of the Orion Context Broker proxy to use for receiving notifications about changes.
> On the other hand, I have tried to put other widgets and operators that appart from the NGSI server URL they need the NGSI Proxy URL, and I don´t know how I can have this last one. I tried to do this https://github.com/conwetlab/ngsi-proxy to configure it.
> Thank you in advance.



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