topic Re: Web Map changes break Web App in ArcGIS Web AppBuilder Questions

Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 15:36:29 GMT

I've created a web map and web application using Developer WAB, when I swapped layers using the Admin Tools (find/replace layers using url), the web app broke (See image below for web app and console error). However the web map still works when launched independently.

The only workaround I have found is to make a copy of the map and switch the web map id in the application. However this is not ideal as we would have to do this everytime we need to swap layers.

Has anyone experienced anything similar and found a fix?

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 15:54:09 GMT

Hayleigh,

The likely issue is that the wab app is maintaining one or more references to a particular layer that was in the web map that is not now. In WAB dev try removing the layerlist widget and the legend widget and readding them. You will need to do the same for any other widgets that have a specific reference to the web map layers (i.e. query widget, filter widget, etc).

Re: Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 16:01:54 GMT

Hi Robert,

Thanks for the quick response! I am using the admin tools to swap my layers and am not removing any layers or changing any layer id's. Since I am simply changing the urls for the layers to reference a new urls. I don't believe this should have any references in the web application? Is that correct?

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 16:28:32 GMT

So are the layers identical (i.e fields and same layer ids) and the only thing that is changing is the url where that layer is coming from?

Re: Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 16:35:10 GMT

Yes it is just imagery, however the only difference is we are swapping from a map service to image service, could this be causing an issue?

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 16:37:00 GMT

Absolutely.

Re: Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 20:14:41 GMT

I tried to replicate this and was unsuccessful. It appears swapping the map service with the image service is not causing any issues.

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 20:18:15 GMT

And how exactly did you replicate this?

Re: Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 20:21:46 GMT

I made a map with the original imagery layers (map services) and then swapped them with the new layers (image services), and the map still loaded in the application.

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 20:27:51 GMT

OK, but that says nothing about any widgets that were originally configured to use the map service and then you switched the webmap to have images services.

Re: Web Map changes break Web App

HayleighPervorse1 — Tue, 16 Apr 2019 20:33:07 GMT

The only widgets referencing those services are the layer list and legend, both of which continued to work after the swap. It appears as though this problem just happened to occur around the same time I swapped the services and I attributed it to this swap, but perhaps it is due to something else.

Re: Web Map changes break Web App

RobertScheitlin__GISP — Tue, 16 Apr 2019 20:40:50 GMT

You best bet is to open a support case with tech support then.