topic Dojo Cannot Read Property 'on' of null in ArcGIS JavaScript Maps SDK Questions https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/dojo-cannot-read-property-on-of-null/m-p/608248#M56887 <HTML><HEAD></HEAD><BODY><P>I've got an interesting one I've been trying to figure out, but having no luck. Hopefully someone else can shed some light.</P><P></P><P>I've got a little chunk of code that is watching for a button click on a popup. When it's clicked it fires a function. It works great on a desktop, however I'm finding on mobile devices/tablets i'm getting the Cannot read property'on' of null error.&nbsp;</P><P>I imagine I'm just missing something in the require, or something silly but it's a bit of a mystery to me at this point.</P><P></P><P>This is the code. It's just the view watching for a click on the "viewDetailsPopupButton", which ,of course ,is embedded in a popup. The error is obviously firing on the "on(dom.byId...)" . I'm just not sure why dom.byID is null?&nbsp;</P><DIV style="color: #333333; background-color: #f5f5f5; font-weight: normal; font-size: 14px;"><DIV><SPAN style="color: #333333;"> </SPAN></DIV><DIV><IMG class="image-2 jive-image" src="https://community.esri.com/legacyfs/online/451406_pastedImage_3.png" /></DIV><DIV>--------------------------------------------------------------------------------------------------------------------------------------------------------------------------</DIV><DIV><IMG class="image-3 jive-image" src="https://community.esri.com/legacyfs/online/451407_pastedImage_4.png" /></DIV><DIV></DIV><DIV></DIV><DIV>-------------------------------------------------------------------------------------------------------------------------------------------------------------------------</DIV><DIV><SPAN style="color: #7a3e9d;"><IMG class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/451398_pastedImage_1.png" /></SPAN></DIV><DIV>Any guesses, or help would be very much appreciated!</DIV><DIV></DIV></DIV></BODY></HTML> Tue, 25 Jun 2019 15:07:42 GMT ShawnRoberts1 2019-06-25T15:07:42Z Dojo Cannot Read Property 'on' of null https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/dojo-cannot-read-property-on-of-null/m-p/608248#M56887 <HTML><HEAD></HEAD><BODY><P>I've got an interesting one I've been trying to figure out, but having no luck. Hopefully someone else can shed some light.</P><P></P><P>I've got a little chunk of code that is watching for a button click on a popup. When it's clicked it fires a function. It works great on a desktop, however I'm finding on mobile devices/tablets i'm getting the Cannot read property'on' of null error.&nbsp;</P><P>I imagine I'm just missing something in the require, or something silly but it's a bit of a mystery to me at this point.</P><P></P><P>This is the code. It's just the view watching for a click on the "viewDetailsPopupButton", which ,of course ,is embedded in a popup. The error is obviously firing on the "on(dom.byId...)" . I'm just not sure why dom.byID is null?&nbsp;</P><DIV style="color: #333333; background-color: #f5f5f5; font-weight: normal; font-size: 14px;"><DIV><SPAN style="color: #333333;"> </SPAN></DIV><DIV><IMG class="image-2 jive-image" src="https://community.esri.com/legacyfs/online/451406_pastedImage_3.png" /></DIV><DIV>--------------------------------------------------------------------------------------------------------------------------------------------------------------------------</DIV><DIV><IMG class="image-3 jive-image" src="https://community.esri.com/legacyfs/online/451407_pastedImage_4.png" /></DIV><DIV></DIV><DIV></DIV><DIV>-------------------------------------------------------------------------------------------------------------------------------------------------------------------------</DIV><DIV><SPAN style="color: #7a3e9d;"><IMG class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/451398_pastedImage_1.png" /></SPAN></DIV><DIV>Any guesses, or help would be very much appreciated!</DIV><DIV></DIV></DIV></BODY></HTML> Tue, 25 Jun 2019 15:07:42 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/dojo-cannot-read-property-on-of-null/m-p/608248#M56887 ShawnRoberts1 2019-06-25T15:07:42Z Re: Dojo Cannot Read Property 'on' of null https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/dojo-cannot-read-property-on-of-null/m-p/608249#M56888 <HTML><HEAD></HEAD><BODY><P>Fixed my own problem.</P><P>Callbacks and requires were in the wrong order.&nbsp;</P></BODY></HTML> Tue, 25 Jun 2019 15:49:35 GMT https://community.esri.com/t5/arcgis-javascript-maps-sdk-questions/dojo-cannot-read-property-on-of-null/m-p/608249#M56888 ShawnRoberts1 2019-06-25T15:49:35Z