topic Re: "Cannot read property '0' of null" error when trying to open survey in web browser in ArcGIS Survey123 Questions

"Cannot read property '0' of null" error when trying to open survey in web browser

ChristinaHoddinott1 — Wed, 06 Mar 2019 22:46:30 GMT

I just published a survey from Connect and when I tried to open it in my web browser this is what I get. Everything seemed to be working fine in Connect, so I don't know why this would happen. Anybody know? Attached is my xls form.

Edited to add that the survey works just fine when accessed from the app. It just doesn't work in the web browser.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JohnathanHasthorpe — Fri, 08 Mar 2019 02:18:45 GMT

Please can you retest this survey after clearing your browser cache - I believe this issue was fixed in the last release. See the published version of your survey: https://survey123.arcgis.com/share/ac9c8bb3958c4fbe98ecb0c0fe49b7f1 which is working for me.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

AlexanderCottone — Wed, 03 Apr 2019 15:29:05 GMT

Is there another work around for this? I have tried clearing my cache and I am still getting this error.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

MiraEl_Koussa — Tue, 09 Apr 2019 12:45:56 GMT

Im getting the same error when I try to open the survey in a browser..

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

AlexanderCottone — Tue, 09 Apr 2019 12:56:13 GMT

Mira,

I figured out that the style formatting was what was causing this error for me. Survey123 did not like that I used the shortened hexcode #444 instead of the full #444444 code. Once I fixed that, the survey was able to be accessed just fine. I would definitely go over your styles and see if that has anything to do with it.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

MiraEl_Koussa — Tue, 09 Apr 2019 12:59:30 GMT

Dear Alexander,

thank you for your fast reply...

Actually, I did not change anything with the style ...

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JoeBryant1 — Thu, 24 Oct 2019 17:11:26 GMT

We are also getting a version of this error when using a browser (Chrome and Explorer), but not when using the App.

"Failed to submit - Cannot set property 'z' of null".

We have cleared our cache and restored the stock style formatting, but this did not resolve the issue.

FYI: The feature layer we based our form on is a related table to a point feature layer. Neither the related table, nor the parent point feature layer have Z values enabled. There is not a geopoint question in the form. The only question in the form that points to a field in the parent (point) feature layer is a hidden field for the GUID that the relate is based on.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JamesTedrick — Fri, 25 Oct 2019 21:13:41 GMT

Hi Joe,

This error sounds different than the one described in the rest of this post. Can you file an Esri Support ticket to troubleshoot this?

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

ChelseaRozek — Tue, 29 Oct 2019 14:20:24 GMT

Hi Joe Bryant‌, did you find a solution to this with ESRI Support? I'm experiencing the same issue.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JoeBryant1 — Tue, 29 Oct 2019 15:26:10 GMT

We're still working on it. My guess was that this was being caused by Survey123 not managing the relationship between the submitted record and the related point feature class. If submitted using the app, all the data except for the calculated GUID (used for the relationship) and the link/relationship itself is getting populated. We have followed James' other post on formatting the GUID (https://community.esri.com/thread/208613-pass-global-id-from-collector-to-g ), and can see the correctly formatted string value in a notes field in the form. However, the feature service is not accepting/storing this string currently. Once we fix this issue, I will see if the browser issue is resolved.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

ChelseaRozek — Tue, 29 Oct 2019 17:40:07 GMT

Thanks for the quick reply! I'm trying to get the Election Management solution to work, and upon closer inspection, looks like the metrics table doesn't actually have a relationship with the feature layer so I guess my situation is a little different. Upon deployment, the form works. Republishing from Connect without even tweaking the xls form causes the form to get the Cannot set property 'z' of null" error in the web version. I'll report back if I figure anything out.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JoeBryant1 — Tue, 29 Oct 2019 18:17:44 GMT

Actually, you reminded me - there originally was a repeat in our form from the relationship. We had deleted the Repeat Group, but I believe there was another "Form End" or similar field that was auto-created that also had to be deleted. This may have been related to the error we were getting. I'm currently not able to reproduce it as we changed multiple variables and now the form won't initialize. (Remember your good troubleshooting workflows, kids!)

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

ChelseaRozek — Tue, 29 Oct 2019 19:02:08 GMT

I might have it! Is your form pretty old? Looks like the Election Management Wait Time form was published with Survey123 version 3.3 (just deployed a fresh copy, didn't even download yet in Survey123 Connect). Survey123 website says under Settings>Version:

When I submit a record, it works.

When I click the "Press here to preview" and it runs in version 3.6, it breaks! Can you check which version yours is running as?

On my original copy of Election Management that I broke, it says:

This must be because I republished the XLS form in Survey123 Connect version 3.6.137.

I'll check my laptop tomorrow, it might still have an old version of Connect to try republishing it on that.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

ChelseaRozek — Tue, 29 Oct 2019 19:27:53 GMT

You might be able to try appending the version on the end of the URL to see if it works in older versions in case it's been published in the latest:

https://survey123.arcgis.com/share/IDHERE?version=3.6 broke mine

https://survey123.arcgis.com/share/IDHERE?version=3.3 works

?version=latest is the intended use of the parameter

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JoeBryant1 — Wed, 30 Oct 2019 18:57:51 GMT

Thank you, Chelsea. I am now seeing the exact same behavior as you: Adding '...?version=3.3' to the URL prevents the error when submitting the form in a browser. Using the latest version (3.6) results in "Failed to submit - Cannot set property 'z' of null". I will take James' advice and submit a Support Ticket.

FYI: Our form is not old; it was developed in the last few months. In Settings>Version it was created using 3.6. I don't have the option to check 3.3 as the version.

The form failing to initialize error we were having was due to unsupported field names in the lookup table csv stored in our Survey123 Connect media folder. And the GUID not being passed to the feature layer upon submission was due to not using the bind::esri:fieldType of 'null' in the temporary calculate row, before passing the correctly formatted GUID to our relationship key field.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

DeonLengton — Tue, 12 Nov 2019 12:58:10 GMT

From our tests it seems that editing an existing record in the Survey123 Browser doesnt work when there is a repeat in the survey. Is this currently not supported James Tedrick‌ ?

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JamesTedrick — Wed, 13 Nov 2019 21:35:18 GMT

Hi Deon,

In particular, forms with values in the bind::Esri:Parameters (often the case for editing with repeats) are not yet supported in the web form.

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

JoeBryant1 — Wed, 13 Nov 2019 22:11:00 GMT

Update: ESRI Support has officially logged this as a bug:

#BUG-000126543 Submitting a survey from Survey123 for ArcGIS (website) would give a "Failed to submit -Cannot set property 'z' of null" if survey with related tables that was made from a Hosted Feature Service and a Feature Service from ArcGIS Server was published from Survey123 Connect version 3.6.137

The best workaround for submitting in a browser is as Chelsea suggests below: use a URL parameter to open the Survey in the 3.3 Version.

(I assume we should move this thread to a separate post for others who are searching for a solution. But I'm not sure how to do that.)

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

ahargreaves_FW — Thu, 22 Sep 2022 19:34:32 GMT

Hi @JamesTedrick as additional info I'm using version 3.15 but was getting the Error: Initializing form... Cannot read properties of null (reading '0') error when attempting to access a survey via the browser. Removing a repeat resolved this....

Re: "Cannot read property '0' of null" error when trying to open survey in web browser

Tim-Woodfield — Fri, 11 Apr 2025 16:49:36 GMT

@JamesTedrick @ahargreaves_FW Has there been an update to this to allow for repeats in the web browser?