CoppeliaSim forums

Posted: **12 Mar 2025, 11:07**

Hi! This constantly happens when saving screenshot images:

[Tools >> Screenshot tool@addOnScript:info] Select the camera or vision sensor you wish to generate a high resolution screenshot for. This model is courtesy of Ulrich Schwesinger.
[Tools >> Screenshot tool@addOnScript:error] 340: in sim.saveImage: operation failed.
stack traceback:
    [C]: in function 'sim.saveImage'
    [string "Tools >> Screenshot tool@addOnScript"]:340: in function 'save_callback'
[CoppeliaSim:error] External call to simCallScriptFunction failed ('save_callback'): error in script function.

Posted: **12 Mar 2025, 17:31**

Hello,

can you tell me how to reproduce the error?

What version/revision of CoppeliaSim are you running?

Cheers

Posted: **13 Mar 2025, 02:18**

Hi,

I can't reproduce the error...

Yesterday I restarted the Coppeliaism for several times, the error still existed. But today after I reboot the computer, the error is gone.

I use the latest v4.9 rev6.

Posted: **20 Apr 2025, 03:33**

I know why the error occurred. When saving the screenshot, all the text in the "file name" input box is selected by default. If you enter a file name without including the image format suffix before saving, it will trigger the following error:

Code: Select all

[Tools >> Screenshot tool@addOnScript:error] 340: in sim.saveImage: operation failed.  
stack traceback:  
    [C]: in function 'simSaveImage'  
    [string "Tools >> Screenshot tool@addOnScript"]:340: in function 'save_callback'  
[CoppeliaSim:error] External call to simCallScriptFunction failed ('save_callback'): error in script function.

CoppeliaSim forums

sim.saveImage: operation failed.

sim.saveImage: operation failed.

Re: sim.saveImage: operation failed.

Re: sim.saveImage: operation failed.

Re: sim.saveImage: operation failed.