I bought MacSparky’s Robot Assistant Field Guide. I can’t get past Video 3 due to errors.
Running MacOS Sonoma
Have Claude Pro Plan
Initially tried to install my Robot Assistant Obsidian vault in my normal working files folder that is a ways down the User documents folder path. After running into this error and getting ifo off the MacSparky Discord channel and perusing the Claude bug reports in GitHub shut Claude down, and restarted. I also restarted my mac. Same results. Then I uninstalled Claude using Clean My Mac, verified no remnants left. Moved the Robot Assistant folder to the top level of my Documents folder, Rebooted my Mac. Reinstalled Claude from scratch. Tried the prompt to Run Assembler for Video 3 again and I get the same error.
Error is " Something went wrong
RPC error: failed to mount Documents/Robot Assistant as Robot Assistant: source path is not accessible: /mnt/.virtiofs-root/shared/Documents/Robot Assistant: stat /mnt/.virtiofs-root/shared/Documents/Robot Assistant: operation not permitted"
I have verified that Obsidian has fill disk access viy System Privacy controls. I have verified that I have read and write access in the Obsidian folder. I can see the CLAUDE.md file and edit it. (some people reported it as a hidden file which it is not for me)
I have sent in a report to Anthropic with screen shots and details as well, but no response yet. My first report was 3 days ago.
But I explicitly gave it permission to the folder when I selected t to start. I’ve now done uninstall, reinstall Claude retry rebooting mac etc.
Only thing I can think of is that I’m on Mac Sonoma? Maybe some issue there because of the age of my system?
I’ve tried it in several different places on my hard drive, in documents directly, in sub folders etc.
This doesn’t make sense. The only folder below the Robot Assistance Folder is skills
See above, I’ve tried moving it to the very top of my user folder and the documents folder so tried all reasonable options. Each time after completely uninstalling Claude, rebooting mac, reinstalling Claude and then adding the Robot Assistant folder into the place I am testing.
Maybe that’s it. I read somewhere that Claude Cowork creates a 10GB virtual machine. If it uses Apple Containers, these are only supported in sequoia and Tahoe
UPDATE: as of today (2026-03-26) I was able to create the Robot Assistant folder in the public folder on my mac mini and it’s working. There is still some sort of permissions problem with it located anywhere else though.
I ran into the exact same issue and ended up asking Claud about the error. It suggested to grant the Claude app access to the „Documents“ folder (where my Obsidian vault is located) in „System Settings - Privacy and Security - Files and Folders“.
This fixed it for me.
I do not want to give Claude access to my entire Documents folder. That is a security nightmare I am unwilling to deal with. I have far too much personal and private info that I do NOT want Claude to access at all.
I’m leery enough as is and am actually moving stuff out of other places into the Claude folder for use then back out when the task is done.
My problem is the only place I can create that folder that works is inside my Public Folder on my hard drive. I would like to point Claude as a specific folder that is down my folder tree in my place for current active files not in Public.
Incidentally, this is one of the Big Challenges with vibe coded apps. Sometimes Claude solves problems in ways that are technically correct but almost certainly not what somebody would want to do intentionally.
A friend was coding an addition to his website, and was facing an issue. Claude helpfully provided a solution that would allow anybody on the Internet to download all site users’ session data.
