Error when downloading Experience Builder Developer Edition App: Error -4051

[OliverPannell]

I am working on Experience Builder Developer Edition and I'm testing an app and have removed any layers that are not enabled by default to see if there is a drop off in performance issues I'm seeing.

However, I've hit a snag and keep getting an error when trying to download & deploy the app:

and the ExBDE server command window shows the following:

Has anybody come across this before or have any ideas on possible solutions?

[kim_hspartner]

Hi @OliverPannell  do you happen to be on Windows 11 or have a folder named "tests" in your custom widgets directory?  One of our developers is experiencing the same issue (Windows 11) but not myself (Windows 10).  

[chapmunnhsc]

@OliverPannell - similar issue we are dealing with: https://community.esri.com/t5/arcgis-experience-builder-questions/exb-1-9-dev-is-broken-strange-erro...