Uninstalled Cisco and Now trying to re-install But...

I know I'm coming across this months later, but maybe I can shed some light for other users experiencing this same problem:

I used AppZapper to remove a copy of Cisco VPN I had installed on my system and ended up having the exact same issue as Glenn when trying to reinstall. What I did was this:

• Open Terminal and do the following:
  • su (be careful when giving yourself root, of course)
  • cd /opt/cisco/anyconnect/bin
  • ls (to see if there's a vpn_uninstall.sh file)
• If there is, then run the following command:

  sh vpn_uninstall.sh

• You'll get this confirmation message in the Terminal:

  Successfully removed Cisco AnyConnect Secure Mobility Client from the system.

Now go back to your .dmg or vpn.pkg file (whatever your source for installing is). Now when you get to the Destination part, you should get no error and you can proceed with the installation.

Tried the su command in Terminal and could not find the file.

This video worked for me: https://youtu.be/76ms8Zjj92U

It gives a different command that worked for my 15 MacBook retina.

just enter:

sudo pkgutil --forget com.cisco.pkg.anyconnect.vp

Followed by your admin user password.

The su command did not work for my mac either. Tried this one, and it worked! Thank you so much.

You didn't uninstall it.

Any third-party software that doesn't install by drag-and-drop into the Applications folder, and uninstall by drag-and-drop to the Trash, is a system modification.

Whenever you remove system modifications, they must be removed completely, and the only way to do that is to use the uninstallation tool, if any, provided by the developers, or to follow their instructions. If the software has been incompletely removed, you may have to re-download or even reinstall it in order to finish the job.

Here are some general guidelines. Suppose you want to remove something called “BrickYourMac.” First, consult the product's Help menu, if there is one, for instructions. Finding none there, look on the developer's website, say www.brickyourmac.com. (That may not be the actual name of the site; if necessary, search the Web for the product name.) If you don’t find anything on the website or in your search, email the developer. While you're waiting for a response, download BrickYourMac.dmg and open it. There may be an application in there such as “Uninstall BrickYourMac.” If not, open “BrickYourMac.pkg” and look for an Uninstall button.

You may have to log out or reboot in order to complete an uninstallation.

If you can’t remove software in any other way, you’ll have to erase your boot volume and perform a clean reinstallation of OS X. Never install any third-party software unless you're sure you know how to uninstall it; otherwise you may create problems that are very hard to solve.

Trying to remove complex system modifications by hunting for files by name often will not work and may make the problem worse. The same goes for "utilities" that purport to remove software.

Thanks yahrdme this is the type of answers you need in hard times... it work for me too. Thanks. Matias

yahrdme's method worked for me, too, but there's also this if anyone needs it:

How do I uninstall Cisco VPN Client on Mac OS X?

(Manual removal instructions)

Thanks yahrdme

It worked for me too !!

Thanks a lot!! 🙂