Posts Tagged ‘Buildbox’

Fix: Buildbox activation issues on load

Buildbox is a wonderful game authoring tool (that spans the whole nocode-code continuum, including the low-code aspect). It now has a free version too with nice templates and tutorials included.


I had an issue with the Windows version (it also has an indentical MacOS-X version since it’s a Qt-based app) where it was complaining about activation issue at startup and couldn’t proceed.

To solve that you can remove activation info (which won’t be removed if you just do uinstall and reinstall) by deleteing the com.eightcell.buildbox subfolder at:


Next time you run Buildbox.exe it will show activation dialog and you can enter your registration key (even the free version has one that you can download from your free account at

With the latest Buildbox 3 there seems to exist an extra com.eightcell.buildbox3 subfolder that you could delete or just rename the main.iblicense files in there to main._iblicense. The launch Buidlbox again to see the activation dialog.


There probably exists some bug in Buildbox that causes one to repeat this action often.
So you could add a RESET_BUILDBOX_LICENSE.BAT file to your desktop with the following commands to delete the license file:

del "%AppData%\..\Local\eightcell\Buildbox\com.eightcell.buildbox3\main.iblicense"

Background info on libpng warning: iCCP: known incorrect sRGB profile

I was just checking some log file saved from Buildbox and seems Qt framework was logging the error:

libpng warning: iCCP: known incorrect sRGB profile

Did some quick research on Google (sorry dear Bing) and added the following background info to the respective question on StackOverflow:

Some changes in libpng version 1.6+ cause it to issue a warning or even not work correctly with the original HP/MS sRGB profile, leading to the following stderr: libpng warning: iCCP: known incorrect sRGB profile The old profile uses a D50 whitepoint, where D65 is standard. This profile is not uncommon, being used by Adobe Photoshop, although it was not embedded into images by default.


Error detection in some chunks has improved; in particular the iCCP chunk reader now does pretty complete validation of the basic format. Some bad profiles that were previously accepted are now rejected, in particular the very old broken Microsoft/HP sRGB profile. The PNG spec requirement that only grayscale profiles may appear in images with color type 0 or 4 and that even if the image only contains gray pixels, only RGB profiles may appear in images with color type 2, 3, or 6, is now enforced. The sRGB chunk is allowed to appear in images with any color type.


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