Print an error when exporting to iOS with icons that don't match their required size

[Tekuzo]

Godot version

3.4 Stable

System information

M1 Macbook Air

Issue description

When trying to export an iOS project, the export will fail if the Spotlight Icons are provided in the Optional Icons section of the export options.
An error message will state that the export failed due to a configuration error in the preset.

Exporting works normally if the spotlight icons are removed from the export.
The export still works with the 180 X 180, 152 X 152, 167 X 167 optional icons.

Steps to reproduce

Export an iOS project and provide the spotlight icons.

Minimal reproduction project

Project 3.zip

[Calinou]

cc @bruvzg

[Tekuzo]

Sorry, this seems to have been user error. I am going to close it. One of my images was too big for the spot I was trying to put it in.

[Calinou]

Reopening, as this is something we should detect and print a proper error message about when exporting.

[bruvzg]

as this is something we should detect and print a proper error message about when exporting.

It is printing Invalid icon size .... error in the log, but we should do something with the error popup, which only displays a message based on the returned error code (and it's almost always ERR_UNCONFIGURED).