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We had TeamViewer installed on my Macbook for home / personal use. Did not use it since very long time.
Today got message TeamViewer Updating and the screen was kind of hanged for long time.
So I deleted all TeamViewer folders and files by moving to Trash and force shut down the Mac (as it was not shutting down as TeamViewer was not quitting)
After this the Macbook is not starting. Message on startup is attached.
Please advise.
MacBook Pro 13″, macOS 10.15
Hello.
Welcome to Apple support Communities
I understand that you have moved/deleted all the TeamViewer Application and system files by moving them to thrash and force-shutdown the computer and not able to boot it up again and getting an error saying "SecurityAgent was unable to create requested mechanism TeamViewerAuthPlugin:start."
I would like to let you know that you are not supposed to Uninstall TeamViewer like that. The recommended method to uninstall it is:
1) Open the TeamViewer app and click the TeamViewer menu in the top-left corner, then click Preferences.
2) Go to the Advanced tab.
3) Scroll down to the very bottom and check Also delete configuration files
4) Click the Uninstall button.
5) TeamViewer is now uninstalled.
This issue can be caused by deleting an authorization plugin on macOS (in this case, TeamViewerAuthPlugin.bundle) without de-registering it first. It is recommended to uninstall it through the above process . This makes sure that the plugin is properly de-registered before deletion.
The way you have moved the TeamViewer application files and configuration files does not properly de-register the authorization plugin.
If you do not have the possibility to restore the plugin by Installing TeamViewer on another Mac and copying the authorisation file into the correct path through Terminal in macOS Recovery, you may instead be able to delete your Mac's authorization database. Your Mac re-creates a missing database during the next startup (using some default settings that are fine for most users).
Follow these instructions
1) Start your Mac in macOS Recovery by holding down Cmd-R until the Apple logo appears. Once your Mac has booted into macOS Recovery, you should see a window titled "macOS Utilities".
To delete the authorization database, your Mac's hard disk needs to be mounted and you will need to know its name (usually something like "Macintosh HD" or "macOS").
2) Open Disk Utility and check the left sidebar for the name of your disk. For Macs running Catalina, look for the name that does not end in "- Data". Select the disk in the sidebar. Click "Mount" in the toolbar (if you only see "Unmount", it is already mounted and you don't need to do anything). Now, Quit Disk Utility.
3) You should be back at the "macOS Utilities" window.
4) From the menu bar on top of the screen, open Utilities > Terminal.
5) Enter the command
rm "/Volumes/<your disk>/var/db/auth.db"
6) Replace <your disk> with the name of your built-in hard disk, e.g.
rm "/Volumes/Macintosh HD/var/db/auth.db"
Make sure not to forget the quotes in case your disk name contains spaces.
7) Restart your Mac.
8) The computer should be functional .
As, I said that you may or may not have the possibility to restore the plugin by installing TeamViewer and copying the authorisation plugin file to the other Mac and copy it into it with terminal, I am describing that method too If you want to try it out. Attached in additional text as I have crossed max. Character limit of 5000. The character " Â " is being added somehow and I am not able to remove it Please ignore that character in the additional text below.
Hope it helps you and problem gets resolved and you are going to be able to boot into your Mac again.
If you need any help please reply back and I will try to help you out.
Cheers!
Hello.
Welcome to Apple support Communities
I understand that you have moved/deleted all the TeamViewer Application and system files by moving them to thrash and force-shutdown the computer and not able to boot it up again and getting an error saying "SecurityAgent was unable to create requested mechanism TeamViewerAuthPlugin:start."
I would like to let you know that you are not supposed to Uninstall TeamViewer like that. The recommended method to uninstall it is:
1) Open the TeamViewer app and click the TeamViewer menu in the top-left corner, then click Preferences.
2) Go to the Advanced tab.
3) Scroll down to the very bottom and check Also delete configuration files
4) Click the Uninstall button.
5) TeamViewer is now uninstalled.
This issue can be caused by deleting an authorization plugin on macOS (in this case, TeamViewerAuthPlugin.bundle) without de-registering it first. It is recommended to uninstall it through the above process . This makes sure that the plugin is properly de-registered before deletion.
The way you have moved the TeamViewer application files and configuration files does not properly de-register the authorization plugin.
If you do not have the possibility to restore the plugin by Installing TeamViewer on another Mac and copying the authorisation file into the correct path through Terminal in macOS Recovery, you may instead be able to delete your Mac's authorization database. Your Mac re-creates a missing database during the next startup (using some default settings that are fine for most users).
Follow these instructions
1) Start your Mac in macOS Recovery by holding down Cmd-R until the Apple logo appears. Once your Mac has booted into macOS Recovery, you should see a window titled "macOS Utilities".
To delete the authorization database, your Mac's hard disk needs to be mounted and you will need to know its name (usually something like "Macintosh HD" or "macOS").
2) Open Disk Utility and check the left sidebar for the name of your disk. For Macs running Catalina, look for the name that does not end in "- Data". Select the disk in the sidebar. Click "Mount" in the toolbar (if you only see "Unmount", it is already mounted and you don't need to do anything). Now, Quit Disk Utility.
3) You should be back at the "macOS Utilities" window.
4) From the menu bar on top of the screen, open Utilities > Terminal.
5) Enter the command
rm "/Volumes/<your disk>/var/db/auth.db"
6) Replace <your disk> with the name of your built-in hard disk, e.g.
rm "/Volumes/Macintosh HD/var/db/auth.db"
Make sure not to forget the quotes in case your disk name contains spaces.
7) Restart your Mac.
8) The computer should be functional .
As, I said that you may or may not have the possibility to restore the plugin by installing TeamViewer and copying the authorisation plugin file to the other Mac and copy it into it with terminal, I am describing that method too If you want to try it out. Attached in additional text as I have crossed max. Character limit of 5000. The character " Â " is being added somehow and I am not able to remove it Please ignore that character in the additional text below.
Hope it helps you and problem gets resolved and you are going to be able to boot into your Mac again.
If you need any help please reply back and I will try to help you out.
Cheers!
Hello sanjeevrai,
It sounds like after trying to remove an app, you are now getting a message when trying to boot your Mac that says "Unrecoverable error SecurityAgent was unable to create requested mechanism TeamViewerAuthPlugin:start."
Here are some resources that can help:
See if you can boot into safe mode, How to use safe mode on your Mac as it can help you determine whether issues you’re experiencing are caused by software that loads as your Mac starts up.
If you are unable to boot into safe mode, macOS Recovery and repairing your startup disk would be the next steps. As it's a similar issue and has the same steps, follow If your Mac starts up to a blank screen to do this.
Hope this information helps.
Have a good day.
Hello,
Glad to know your issue is fixed and your Mac is able to boot properly now.
No. You do not need to do anything else related to the deletion of the TeamViewer files/Application as we have already deleted the authorisation database of the Mac which caused the issue. So, the issue is fixed. If you want, you can still install TeamViewer if you want to use it. But , make sure you follow the above procedure ( in the previous Post ) for uninstalling it if required. This makes sure the Authorisation plugin is properly de-registered and won't cause any issues later on.
Thanks So much. I wonder if on this thread I may ask about a totally different subject.
I have HP Laserjet Pro MFP M130fn printer/scanner/fax installed with HP driver - I can print but not able to open the Scanner. I get message "“HPDM.framework” will damage your computer". I have tired to uninstall and reinstall the printer but same result.
Hello.
The error message you are getting "HPDM.framework” will damage your computer" is not related to any malware/virus infecting the Mac system.
This error is caused due to the incompatibility of the HP printer drivers with the newer/latest versions of macOS. Your Mac computer might have updated the OS recently or HP might have removed support for the older version of the driver and this might be causing the problem. The means that your HP printer drivers/software on the Mac is of an older version and need to be updated or reinstalled. To fix this you need to check if there are any updates related to the HP drivers in System preferences. If available please update them. If none are available the driver must have been corrupted or incompatible and you should uninstall them and install them again. Here, the further process to fix it depends on what version of macOS you are running.
Check out this link where your printer model is already selected. The HP site is not detecting the current OS correctly so make sure you select "Choose a different OS" and select the correct version of macOS. It shows the relevant/required Software/Apps to be installed on the computer on the Drivers and there is an official App from HP called "HP Easy Start" which can help you update/install the drivers for the printer on your Mac.
If you no more want to use the printer you can install HP Easy Start App and then make it uninstall all the drivers by Clicking on the HP Easy Start App on the top left next to the Apple logo and Click on uninstall HP Software. Read any warnings that display, and then click Continue. When prompted, type your administrator user name and password. HP Easy Start removes all HP printer software and the uninstallation will be done and all the related drivers will be deleted in the correct way. Then to use it again then install the HP Easy Start app from the same website and make it setup all the drivers there. It is also recommended and very convenient to install the related drivers and software and add the printer and many more with help of the HP Smart Application available there itself. ( Available to download in the Driver-Product Installation Software Section in the link below.) Also note that HP Smart App is only available for macOS 10.13 High Sierra and later. HP Easy Start App is available from macOS 10.9 Mavericks or higher.
Link to download HP software and drivers on your Mac for your printer:
Please reply back if you need more help on this. I will be happy to help you.
Thanks!
Thanks, this was helpful. I followed steps 1-7 and my Mac is now functional. Do I need to do anything else related to the TeamViewer files/Application I deleted in the wrong way earlier?
Hello sanjeevrai .
Please let me know if your issue with your HP Printer drivers is resolved or not so that I can provide you additional assistance if required.
Cheers!
TeamViewer
