Weird LiveCode Plugins Prefs writing problems

William Prothero waprothero at
Tue Feb 12 19:16:32 EST 2019

Just in case you are getting the same "invalid bsd flags ….” when you try to do a disc first aid using disk utility, on your Macintosh SSD boot drive, it turns out that the recent versions of OneDrive are causing that error. I found that the error only occurs on the SSD drive. If I boot from an external drive, the error doesn’t occur. I found it while using Preview to view an email pdf attachment. The system hangs when I then try to export that pdf to someplace else. If I load, then export some other pdf file (not from mail), it works normally.

I’ve spent loads of time chasing this down and it seems there is something special about the SSD drive file system that OneDrive messes up. 

See: <>

I have put a LOT of things on OneNote, so don’t want to delete OneDrive (which syncs the notes across devices). So, I’ll wait a bit and hope Microsoft does a fix.


> On Feb 8, 2019, at 3:34 PM, hh via use-livecode <use-livecode at> wrote:
> Bill,
> I had severe problems when starting with MacOS 10.14.
> As I know now these were mostly permission problems.
> The Apple security hystery may help to that. I still
> have some files of zero size that are not deletable
> and change their name. I think this is caused by MacOS.
> But meanwhile I'm running 10.14.3 without problems.
> For repairing and maintenace I use Onyx (which has for
> each main MacOS an own version):
> I personally think that "bitDefender" and "CleanMyMac"
> make more harm than they help. Onyx is more transparent
> and helped me out of the problems described above.
> p.s. The revonline cache is deletable from the LC prefs.
> The LC caches are in /Library/Application\ Support/RunRev.
> You can open the folder from message box:
> launch document $HOME&"/Library/Application Support/RunRev"
> Good luck!
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