Failed to Open Session due to "unknown group..."

[aym_ccs]

Hello, I am getting the following error while trying to start my virtual machine

Failed to open a session for the virtual machine sparkvm.

Failed to load R0 module /Applications/VirtualBox.app/Contents/MacOS/VMMR0.r0: An unknown (and thus untrusted) group has write access to '/Applications' and we therefore cannot trust the directory content or that of any subdirectory (VERR_SUPLIB_WRITE_NON_SYS_GROUP).

Failed to load VMMR0.r0 (VERR_SUPLIB_WRITE_NON_SYS_GROUP).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

Any help? couldn't find anyone else with the same error. Mac OS X 10.10.5
thanks

[aym_ccs]

Solved it myself.

Went to the folder Applications > get info> then on the groups with access I put all of them except System to Read Only. Problem solved.

[socratis]

May I suggest that you don't do this sort of thing manually, but instead go in the "Disk Utility" and "Repair Permissions".

[rpmurray]

,,, but instead go in the "Disk Utility" and "Repair Permissions".

I thought you couldn't do that anymore in El Capitan.

[socratis]

Man, sometimes I really hate how Apple tones down things and thinks that we're children!

But, there is hope, even if the standard 'diskutil' command line has removed the 'repairPermissions' option. From http://osxdaily.com/2015/11/04/verify-r ... -mac-os-x/ :

sudo /usr/libexec/repair_packages --repair --standard-pkgs --volume /

Run that in the Terminal and see what the output is.

Automatic repairs my @$$...

[balekis738]

Hi, I know I'm late to this, but I just had this same issue with macOS 12.5.1 and found the solution by myself. I'll add it here in case anyone needs it.

The permissions of the /Applications folder need to be the following:
drwxr-xr-x (permissions) root (owner) admin (group)

You can set them using the Terminal. Use these two websites to help you:
controlc. com/1cd622451 (remove the blank space to open the link)

[mpack]

Well thanks for trying to help, but "late" is putting it mildly. The original question was asked over 7 years ago, which is 6 years before MacOS 12.5 existed.

Time to lock this I think.