I'm running the NEM client on Mac OS X. When I try to add an existing account I get error 500.
I even updated to Yosemite
Some other user posted about the same problem in the NEM forum but no answer was given. Does anyone know the problem > solution?
Soooo, I am not sure the exact problem but I know that in the past if people were importing a private key and there was a space at the end of the private key, then they could get error 500.
The installer definitely shouldn't have worked if you didn't have Yosemite, but I think it should work after the update. Anyway, here is the usually suspects or Mac problems.
1) Before installing a new version of NEM, you definitely need to uninstall any old versions of NEM. So first uninstall any and all versions you can find. (Each version will have its own folder in Applications). And for added measure it is important to on Mac go to Finder, then click "Go" at the top of the screen. Go to Computer, then Macintosh HD, then users, then your user name, and then delete the NEM folder.
http://blog.nem.io/how-to-remove-old-nem-software-versions/ http://blog.nem.io/how-to-find-export-or-delete-your-wallet-and-address-book-file/
Only then after having uninstalled all versions and deleting the NEM folder, should you then try to reinstall. (following the instructions above will delete your wallet, so want to back it up just to be sure. And as always be sure to back up your private keys)
2) Mac might not allow you to install NEM due to security settings. If this happens, please go to System Preferences -> Security & Privacy -> Install anyway.
3) In Mac I went to System Preferences → Security & Privacy → Firewall → Firewall options → + → NEM 0.6.xx → wallet → okay. If that still doesn't work in Mac, you may need to turn your Firewall off.
4) It is very important to have the latest version of Java 8 running.
5) 10.10 Yosemite and up required to use the installer. If you have 10.9 or lower, you must run the stand alone.
These are all the common sticking points that I can think of with Mac. I'm assuming you don't have any third party virus scanners or firewalls or things like that because they aren't really needed on Mac.
Please let us know if it works.
One last trick is to try the stand alone. I actually run it half the time on mac anyway just because it is a little more fun. http://blog.nem.io/mac-installation-guide-standalone/