Any idea what is going on here? I’m trying to deploy an account customization and I get this message

An error occured during validation of file cabinet items against the account

Details: Access denied. No extension allowed access.

Which Role are you using to validate? And where the files are located in FileCabinet? Seems like the role which is trying to access file cabinet doesn't have permissions

Interesting. It’s the Developer role. Last week I had no problems. I will perform some checks

I've seen this as well on some accounts, with the NS provided "Developer" role - never got to root cause

Okay so it worked by customizing that developer role. Nice work-around :S