ITOOSOFT Forum

Forest Pack => Forest Pro (*) => Topic started by: Larus on December 04, 2025, 12:25:34 pm

Title: Error 15
Post by: Larus on December 04, 2025, 12:25:34 pm

Hello, I'm updating the FP and RC and this time wanted to set library path to a network path. Everything was ok until it reached The3dGarde package, it stopped with Error 15: We can't verify the package checksum.
My internet is ok, disks are ok, licenses ok...
How to resolve this?
Thank you :)

Title: Re: Error 15
Post by: Michal Karmazín on December 04, 2025, 12:39:48 pm

Hi,

I'm sorry to hear you're facing these troubles. Please double-check, that there's enough space on the unit, optionally try to set another folder under Update Manager's Preferences > Packages Cache > Select folder.

If that doesn’t resolve the issue, I suggest proceeding with the following steps:

• Check the path under Update Manager's Preferences > Packages Cache.
• Close the Update Manager.
• Remove all the content from the folder found in the first step / the default one:
  C:\Users\<yourUsername>\AppData\Local\Itoo Software\Update Manager\downloads
• Reset the Update Manager by deleting the following file and download these again:
  C:\Users\<yourUsername>\AppData\Local\Itoo Software\itoosoft_packages.ini

I hope this helps.

Best regards,

Title: Re: Error 15
Post by: Larus on December 05, 2025, 10:27:36 am

Thank you Michal.

I have resolved the issue by changing the location of the folder. It was same disk (space was not an issue).
I have also set different folder for downloaded packages. Previously I used same folder both for packages and installation.