CS4 error 150:30 with Yosemite

Edward,

CS6 was extensively tested, but I'm not sure about older versions. See this hepful link:

Photoshop & Mac OSX 10.10 (Yosemite) 

scroll down and see some of the FAQ's.

Items of interest from Jeff's blog may be the suggestion to downgrade Java :

install “Java for OS X 2014-001″ from here:   http://support.apple.com/kb/DL1572

and the information on to fixing the damage Yosemite did to licensing:

http://helpx.adobe.com/x-productkb/global/error-licensing-stopped-mac-os.html

More info: Mac OS X Yosemite (10.10) compatibility FAQs

Pattie

I have OS X 10.10.3 and had upgraded from 10.9 and migrated to a new sad hard drive since using CS4. On opening PS I got error: 150:30. Just downloading & reinstalling CS4 worked for me. PS (what I use most) works fine. I didn't even have to uninstall the old, migrated CS4 program files.

I'm working on the same sort of problem...

Some people say their CS4 still works on 10.10, so I'm trying to make it work.

Apparently, migrating/restoring from a backup is something adobe doesn't like, so it either gets scrambled or deauthorizes your computer.

Did you uninstall CS4 this way?

Like Gener7 said:

Uninstall, check Remove Preferences

Do a Repair Permissions from Disk Utility

Reinstall from discs, and if you do not have them, download from here:

Download CS4 products

(Updates here:)

Adobe - Photoshop : For Macintosh

Or try what they suggest here:

150:30

Oh, and make sure everything's updated.

Hope that helps!

CS4 is not compatible with Yosemite.

Mylenium