So as the title says having problems with creating a custom in-panel widget.
Have followed the example here :
https://developers.arcgis.com/web-appbuilder/sample-code/create-custom-in-panel-widget.htm
Point 4 seems wrong as there is no config-demo.json file or sample-configs folder so have edited the stemapp/config.json file.
After that it all just seems to go wrong:
http://[your host name:3344]/webapp/?config=sample-configs/config-demo.json
will not work so tried
http://[your host name:3344]/webapp/?config=config.json
with no joy, starts to load then just a white screen.
Skipped to # 10 followed the instructions but the widget does not appear when I build a new web app in Developer. Also no where in Builder does it say "Click here to add widget" unless I am looking in the wrong place.
If anyone from ESRI is reading this I am finding your normally very good documentation a bit lacking in accuracy.
As ever any help gratefully received.