Crash while using extension editor - can't add or edit sprites for custom objects

[Keith]

Describe what you were doing when the crash happened

I added a custom object
clicked the [children] tab,
clicked add object and selected sprite
it crashes immediately

GDevelop version

5.3.187-9eb721662f404d9cc215467ab132bf977fb24121

Platform info

System Version: 10.0.19045, Arch: x64, User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) GDevelop5/5.3.187 Chrome/100.0.4896.143 Electron/18.2.2 Safari/537.36, Platform: win32

Additional error context

uniqueErrorId: b4c21804-0498-440a-8a8f-858be84b1475

TypeError: Cannot read properties of undefined (reading 'createDisplayName')
at children (file:///D:/users/keith/appdata/local/Programs/GDevelop/resources/app.asar/www/static/js/283.8113e3ca.chunk.js:1:2156475)
at t.value (file:///D:/users/keith/appdata/local/Programs/GDevelop/resources/app.asar/www/static/js/main.69f282b5.js:2:245124)
at Wa (file:///D:/users/keith/appdata/local/Programs/GDevelop/resources/app.asar/www/static/js/main.69f282b5.js:2:492130)
at za (file:///D:/users/keith/appdata/local/Programs/GDevelop/resources/app.asar/www/static/js/main.69f282b5.js:2:491923)
...

Additional component context

in t
in zt
in div
in s
in div
in ForwardRef
in ForwardRef
in div
in div
in ForwardRef
in ForwardRef
in div
in t
in ForwardRef
in T
in div
in ForwardRef
in ForwardRef
in ForwardRef
in ForwardRef
in Unknown
in PZ
in n
in t
in Unknown
in IZ
in t
in n
in div
in s
in div
in ForwardRef
in ForwardRef
in Unknown
in Fh
in FZ
in div
in div
in t
in DragSource(t)
in DropTarget(DragSource(t))
in n
in k
in t
in div
in div

...

[Clément Pasteau]

Thanks for the report @doug13579 - probably linked to the changes we've done in the objects structure. we're looking at it

[D8H]

Thank you for reporting this. It should be fixed in the next release.

As a workaround, the sprite child is actually added before the crash, so if you go back to the custom object, you should see it in the list.

[Keith]

thanks for the quick response

[Keith]

Thank you for reporting this. It should be fixed in the next release.

As a workaround, the sprite child is actually added before the crash, so if you go back to the custom object, you should see it in the list.

While it does still add a sprite I still can't open the properties by double clicking on it or selecting "edit" from the right mouse button popup. I can select "behaviors", "variables" or "effects" but clicking on the properties tab causes it to give the same error.

[Clément Pasteau]

This should be fixed in the 5.3.188