I get an install error stating the there are FOF30 and FOF40 libraries that conflict with J2Commerce. I have deleted the old FOF30 directory but Akkeba Backup Pro Ver 10.3.6 uses the FOF40 library I believe? What is the solution? I do not have an email to create a temporary user for site access.
#899 J2Commerce Install Error - FOF duplicate with Akeeba Backup 10.3.6
Posted in ‘Technical Support / Bugs’
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J2Commerce
Version
J2Store/J2Commerce v4
Latest post by Olivier on Wednesday, 22 July 2026 14:34 UTC
Tuesday, 21 July 2026 00:36 UTC
Greg Wolfe
Wednesday, 22 July 2026 14:34 UTC
Olivier
Hi Greg,
Akeeba no longer uses the fof libraries (since Joomla 4). They can be safely removed, leaving only the one we package with J2Commerce: fof (that modified version will allow you to move to Joomla 6).
If the libraries do not show in the libraries section in the backend (in Manage Extensions -> filter by libraries), they need to be removed manually on the server.
This warning while installing is intensionnal: we need to make sure sites do not carry 'dead' code that is no longer supported and make your site vulnerable.
Olivier.
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