What is the problem?
I use Prusaslicer 2.3 with Octoprint Version 1.5.3. Most of the time I get this message after uploading a gcode file and starting to print:
Object doesn't fit print volume
Object in xxx.gcode exceeds the print volume of the currently selected printer profile, be careful when printing this.
Object exceeds print volume in depth.
Object's bounding box: (0.00, -3.00, 0.00) × (177.38, 187.37, 111.00)
Print volume: (0.00, 0.00, 0.00) × (250.00, 210.00, 210.00)
You can disable this check via Settings > Features > "Enable model size detection [...]"
What did you already try to solve it?
I assume it has to do with the starting gcode produced by Prusaslicer containing this line:
G1 Y-3.0 F1000.0 ; go outside print area
However this is needed for the initial purge of filament prior to the start of the printing.
I click print again and it starts printing. I did not want to turn off the warning because it might save me from attempting a problem print.
Additional information about your setup
OctoPrint Version 1.5.3, Version 0.17.0, running on Raspberry Pi 4 Model B Rev 1.1