topic Re: Possible solution if the EXB download fails in ArcGIS Experience Builder Questions

Possible solution if the EXB download fails

DavidDas__GISP — Sun, 30 Jul 2023 03:06:08 GMT

You may have run into this issue where you are attempting to Download a ZIP file of your Experience Builder Developer Project.

The download process spawns a Loading Page with a spinning wheel.

After waiting for a while, you get this error message:

So you attempt to Download the ZIP file a second time.

You get this new error message:

Not Found

How do you proceed?

I have found a way get around this issue which works most of the time.

You can manually assemble the necessary files by following the steps in the included PDF.

Best regards,

David Das

Re: Possible solution if the EXB download fails

DavidDas__GISP — Tue, 01 Aug 2023 21:40:12 GMT

I did some more investigation on the issue of the Download failing with EXB 1.12.

In my previous post I presented a possible workaround on using EXB 1.12 with Node.js 14.21.3.

I looked at the ESRI documentation and found that Node.js version 16.20.1 is recommended.

https://developers.arcgis.com/experience-builder/guide/release-versions/

Downloaded Node.js version 16.20.1 (Gallium) from:

https://nodejs.org/en/download/releases

Selected Releases for Node.js 16.20.1 Gallium.

https://nodejs.org/download/release/v16.20.1/

Downloaded the file:

Node-v16.20.1-x64.msi

Installed Node.js 16.20.1

Ran a complete installation of the Node.js Server and Client processes and started Node.js.

Launched the Experience Builder Dev Edition 1.12 in Chrome.

https://localhost:3001

Attempted to download the ZIP file.

Kept refreshing the server\temp folder to monitor the files being written.

C:\DAVID\EXB\EXB13\server\temp\13\cdn\1

Kept refreshing this folder.

The themes folder was created.

Then the widgets folder was created.

C:\DAVID\EXB\EXB13\server\temp\13\cdn\1

Finally, the resources folder got created followed by the all-important config.json file.

Essentially, all the necessary files were written at this point.

The ZIP file should have been created and the process should have stopped.

C:\DAVID\EXB\EXB13\server\temp\13\cdn\1

However, the process hung.

I received this error message.

Not found

Most of the files and folders started to get deleted.

I was left with only these.

C:\DAVID\EXB\EXB13\server\temp\13\cdn\1

This means upgrading Node.js from 14.21.3 (Fermium) to Node.js 16.20.1 (Gallium) did not resolve the issue with downloading ZIP files.

The workaround is to monitor the server\temp folder and stop the process as soon as it finishes writing the widgets folder and manually assemble the missing files as I have explained in my previous post.

If someone has found a better solution, please share.

Best regards,

David

Re: Possible solution if the EXB download fails

JeffreyThompson2 — Tue, 10 Oct 2023 15:33:10 GMT

I had not experienced this problem until today. Then, I realized I was not running my terminal in admin mode. When I restarted my server with my terminal in admin load. It downloaded without issue.

Attempting to download in regular mode produces the following terminal error:

Re: Possible solution if the EXB download fails

DavidDas__GISP — Tue, 10 Oct 2023 15:59:04 GMT

Hi Jeffrey,

Thanks so much for sharing the issues you are having downloading the ZIP file in Experience Builder Developer Edition 1.12.

I upgraded to Windows 11 Enterprise, Version 22H2 and still getting similar error messages while running the download process.

We need to resolve this issue.

You are one of the most experienced developers in our Community.

Hoping you can help to figure out a reliable workaround.

Re: Possible solution if the EXB download fails

DavidDas__GISP — Tue, 10 Oct 2023 16:58:02 GMT

Hi Jeffrey,

I opened a Command Window as Administrator and started the npm server process.

When I attempted to download the ZIP File, I got this error message:

Not Found

The failed process left these temporary files:

C:\DAVID\EXB\EXB15\server\temp\7\cdn\1

I am using EXB Dev Edition 1.12

Node.js version 14.21.3

Windows 11 Enterprise, 22H2

I hope we can figure out a reliable way to download the ZIP file without having to manually assemble the required files and folders.

Re: Possible solution if the EXB download fails

JeffreyThompson2 — Tue, 10 Oct 2023 18:18:48 GMT

A few things to try:

Your Node version is out of date. The current version is 18.18.0. I know some people had issues using Experience Builder in Node 16, but they appear to be resolved in the 18 version.
Check your file structure to make sure that you do not have any folders without files in them. This can cause all sorts of odd webpack errors. Start checking at the folder in the error message.
The error indicates that there is something in a folder that should be empty. Maybe it could be resolved by copying your Experience? In the Experience Builder builder mode, try copying your Experience and then publishing and downloading without making any further edits.

Re: Possible solution if the EXB download fails

bdoventures — Mon, 04 Dec 2023 16:12:24 GMT

For those who are concerned about having to "manually reassemble" files as noted in the PDF, I've found that if I end the process once the json is written, there's nothing missing for me. The app works when uploaded for me at that point.

I have tried multiple potential solutions and not found a way to get the download process to correctly complete without errors using Dev Ed 1.13 on Windows 11, irrespective of Node.js version.

Re: Possible solution if the EXB download fails

LukasWürsch — Tue, 05 Dec 2023 14:07:29 GMT

Hi, I had the same problem with ExB developers edition 1.13. I could not make it work properly on windows but running Experience builder on Ubuntu (in a virtual machine) worked for me.

Re: Possible solution if the EXB download fails

bdoventures — Thu, 07 Dec 2023 21:29:33 GMT

Something that worked for me today in Windows 11 w/ EXB 1.13 and Node.JS 16.20.1:

After turning off almost all of my antivirus/firewall protection, I started the server in Windows Powershell rather than the normal command prompt. Then, I was able to successfully download an app using Chrome. Everything was properly zipped, and I didn't get any error messages - just deprecation warnings.

Re: Possible solution if the EXB download fails

MicahWilliamson — Mon, 11 Dec 2023 15:48:21 GMT

After 1.13 working without error for a number of days, I began to struggle with this today. I tried a fresh download (no custom widgets), new user, new appID, default APP, Admin cmd, PowerShell, cleared cache, reboot... all with the same result. I opened a case with Esri and got the typical non response. Then someone put me onto this thread. I appreciate the PDF. Grabbing the compiled application during the spinning wheel seemed to be the only things that worked. It took a few tries to get the timing down. but I am able to publish much needed updates now.

It's a workaround, but .. Come on...

Re: Possible solution if the EXB download fails

MicahWilliamson — Wed, 13 Dec 2023 17:41:18 GMT

MY FIX: Was whitelisting the C:\<install location>\ArcGISExperienceBuilder folder with our virus protection software. We use a cloud managed version of Trend Micro. I first asked/bribed/threatened our IT to uninstall it for 5 minutes to allow me to troubleshoot. then when it worked, I Esri told me to whitelist the install director of ExB. This has worked consistently for about a day. Back in business!

Re: Possible solution if the EXB download fails

MarcelŠíp — Fri, 12 Jan 2024 16:31:12 GMT

As a workaround you may also export the app from the terminal using a node script as described in a separate post by @GavinRehkemper: https://community.esri.com/t5/arcgis-experience-builder-blog/experience-builder-devops-generating-the-app/ba-p/1112247

Re: Possible solution if the EXB download fails

MichaelLev — Mon, 05 Feb 2024 08:04:49 GMT

Thanks a lot, since this problem just scared me off!

I succeeded to download by deleting the "temp" folder in server folder,

and then download succeeded by running server either as administrator or not.

Good to know there is also Gavin's way!

but it's good to know there is another safe way.

Re: Possible solution if the EXB download fails

Layelmam_Mohammed — Thu, 08 Feb 2024 08:24:08 GMT

Hello I have the same problem. I have EXD version 1.13 and I have tested several versions of Node 16 18 20 but I cannot download the Zipfile. I hope that an ESRI technical manager can answer me, I cannot contact ESRI support, it is urgent.

Re: Possible solution if the EXB download fails

JesseCloutier — Thu, 08 Feb 2024 15:51:51 GMT

@TonghuiMing or @ShengdiZhang, any chance either of you have any suggestions you'd be able to offer @Layelmam_Mohammed? They've already tried to workaround(s) suggested below without success.

Re: Possible solution if the EXB download fails

TonghuiMing — Fri, 23 Feb 2024 07:19:32 GMT

@JesseCloutier Thanks for bringing this to our attention. Earlier our team was on holiday so just noticed this.

We have come across several cases where the user's anti-virus software is the reason for blocking downloads from the 3001 environment. @Layelmam_Mohammed Maybe you can give it a check. Thanks.

Re: Possible solution if the EXB download fails

JasonHildrethCityofTacoma — Wed, 06 Mar 2024 23:28:10 GMT

I ended up changing the permissions on the Experience Builder folder itself and that fixed the problem for me (in Windows). Just right click the EXB Dev folder and change everything to read/write.

For some reason when I installed it did not have the proper permissions. Your mileage may vary.

This also worked before I figured out the permissions issue:

https://community.esri.com/t5/arcgis-experience-builder-blog/experience-builder-devops-generating-the-app/ba-p/1112247

Re: Possible solution if the EXB download fails

TianWen — Fri, 15 Mar 2024 06:00:16 GMT

Could you attempt to disable your antivirus or its web protection mode and see if that resolves the issue? In most cases, this should resolve the issue.

Re: Possible solution if the EXB download fails

MichaelLev — Thu, 21 Mar 2024 11:46:24 GMT

@MarcelŠíp Thanks a lot! I use Gavins's script many times every day (by cmd file) and it works fantastic.