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Community Expert
Bobby HendersonCommunity Expert
Community Expert
August 20, 2025

Assertion Failure error in 29.9.14 Build

  • August 20, 2025
  • 3 replies
  • 328 views

I'm seeing an issue with the Windows 29.9.14 build when it is first launched. An error box with the title "Assertion failure. Do you want to Debug" pops up with the following message:

 

AI exception from ErrorThrower declared in file: D:\J\ws\ilst_main\app\Suites\FxIllustratorDiagnosysPrefs.cpp line: 117

 

The first time I saw the error the 29.9.14 beta wouldn't launch regardless if I clicked the "yes" or "no" buttons. After rebooting and clicking the "no" choice Illustrator would finish launching.

 

It's a strange issue, considering I didn't have any extra drives attached at the time, just the boot disc drive in the computer (drive C).

    3 replies

    B
    Community Expert
    Bobby HendersonCommunity ExpertAuthor
    Community Expert
    September 30, 2025

    I've been running the v30 beta build for the past week or so; I haven't seen an assertion failure error with it.

      S
      Community Manager
      Smriti CapoorCommunity Manager
      September 30, 2025

      Hello @Bobby Henderson / @Madeline31411823dvqu can you please confirm if you are using the latest Beta build? The latest is 30.0.0 #72 If not, please update to the latest and let us know if you are still facing this issue.

      M
      Madeline31411823dvqu
      Participant
      August 20, 2025

      Started having the exact same problem today. Tried uninstalling and reinstalling Illustrator and it is still not working. 

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