topic Re: Blank webappbuilder page when starting node.js in ArcGIS Web AppBuilder Questions

Blank webappbuilder page when starting node.js

DouglasGuess — Wed, 11 Feb 2015 18:48:50 GMT

I’ll set the stage… within my AGOL for Organizations account, I created a Web Map (name: GIS Viewer - which is the web map I’m using within my Web AppBuilder application). I downloaded the Web AppBuilder for ArcGIS (Developer Edition) and went through the initial “Get Started” page (https://developers.arcgis.com/web-appbuilder/guide/getstarted.htm ). I started Node.js (which spawned Web AppBuilder in browser), specified my portal (AGOL for Org. url), and was then prompted for an App ID. After some reading, I created a Web Mapping Application in AGOL (name: GIS Viewer_WAB) and Registered the app and set the redirect URI’s, then copied the App ID into the text box within the Web AppBuilder. Everything worked fine for a while.

Now, within AGOL, the Web Mapping Application (GIS Viewer_WAB) was deleted. I deleted it because I was having some issues with basemaps and thought it was the app and wanted to start from scratch. I thought I could delete it and create a new one, register that app in AGOL and then update the App ID in the signininfo.json file located within the \arcgis-web-appbuilder-1.0\server folder on my machine. Now, when I start Node.js, the Web AppBuilder page within the browser is blank.

Anyone have some thoughts on what could/should be done to be able to view the stemapp again via Node.js?

Thanks,

Doug

Re: Blank webappbuilder page when starting node.js

RobertScheitlin__GISP — Wed, 11 Feb 2015 18:57:16 GMT

Doug,

You can basically reset WAB by deleting the contents in the server\db folder.

Re: Blank webappbuilder page when starting node.js

DouglasGuess — Wed, 11 Feb 2015 19:15:01 GMT

Thanks for replying Robert. Ok, within my server\db folder I see apps and repoitems. I deleted those two files, restarted Node.js and I'm still getting a blank WAB page (http://[local machine]:3344/webappbuilder/

Re: Blank webappbuilder page when starting node.js

RebeccaStrauch__GISP — Wed, 11 Feb 2015 19:19:10 GMT

Some suggestions can be found Tips and Observations for getting Web AppBuilder - Developer Edition Installed‌

I have some hints about refreshing the WAB and creating and connecting to the app Id. As Robert suggested, sometimes it's easier to just start up a new WAB folder. But you should also be able to copy the site you setup, and not lose the work you did.

Re: Blank webappbuilder page when starting node.js

RobertScheitlin__GISP — Wed, 11 Feb 2015 19:24:32 GMT

Doug,

Try renaming the signininfo.json to signininfo__.json and try to start WAB again.

Re: Blank webappbuilder page when starting node.js

DouglasGuess — Wed, 11 Feb 2015 19:33:52 GMT

I was able to start a new WAB folder and copy the site. Now when I start node.js, all is good! Thanks Rebecca and Robert for your input!

Re: Blank webappbuilder page when starting node.js

AndrewParnell — Wed, 14 Oct 2015 20:58:12 GMT

This solution worked for me rather than clearing out the db folder. Can you tell me why?

Many thanks,

Andrew

Re: Blank webappbuilder page when starting node.js

RobertScheitlin__GISP — Thu, 15 Oct 2015 01:27:11 GMT

Andrew,

which comment worked for you?

Re: Blank webappbuilder page when starting node.js

AndrewParnell — Thu, 15 Oct 2015 02:01:59 GMT

Hi Robert,

Thanks for the quick response.

Yes your solution with the renaming signininfo.json to signininfo__.json

Cheers,

Andrew

Re: Blank webappbuilder page when starting node.js

RobertScheitlin__GISP — Thu, 15 Oct 2015 11:53:12 GMT

Andrew,

I am actually not sure why this happens. But renaming (or you could just delete it) the signininfo.json forces WAB to require you to re-approve the app with AGOL.

Re: Blank webappbuilder page when starting node.js

AndrewParnell — Thu, 15 Oct 2015 21:12:02 GMT

It's very odd as the contents appear identical in the two files as well.

Thanks for your help!

Andrew