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I get an error message "Licensing error! Please install Liquid Notes again." after installing Liquid Notes on Mac OS X.

Last Updated: Mar 14, 2017 04:12PM CET
This article talks about an error message "Licensing error! Please install Liquid Notes again." that may be shown after installation or update of Liquid Notes on Mac OS X 10.10+.

Quick answer: Check the file permissions for directories related to the license manager, and correct them if necessary. Read more information below.
 

Error message after installing or updating Liquid Notes on Mac OS X 10.10+

Some people have reported an error message "Licensing error! Please install Liquid Notes again." being shown after they installed Liquid Notes for the first time, or updated the software. This is a result of file permissions having been corrupted by the installation of a version of Mac OS X 10.10+, which prevents files being copied in specific directories pertaining to the license manager. The license manager then doesn't run, hence above error message is shown. 

Occurrence of the problem is rare.
 

Change file permissions on OS X

In order to correct this problem users are advised to follow the following steps to change the file permissions for the directories accessed by the license manager.

To do so, please follow these steps:
 
  1. Permissions on the Nalpeiron directory:

    In Terminal, type the command hereafter and press Enter after each command ..

    "sudo chown root:wheel /etc/nalpeiron"
    "sudo chmod 0755 /etc/nalpeiron"

    (Note: When you type the first command in the sequence "sudo chown root:wheel /etc/nalpeiron" and press Enter, the system is going to ask for your password. Type in your password, and it will switch you automatically to root user.)

    Now if you check the permission on the directory ..

    "ls -l /etc/nalpeiron"

    You should see ..

    "drwxr-xr-x 4 root wheel 136 Aug 27 2014 /etc/nalpeiron/"

    The important part is the drwxr-xr-x and "root wheel". The date will most likely be different.
     
  2. Permissions on directories:

    In Terminal, type the command hereafter and press Enter after each command ..

    "sudo chown root:wheel /etc/nalpeiron/Nalpeirond6b"
    "sudo chown root:wheel /etc/nalpeiron/DemoOver"

    "sudo chmod 0755 /etc/nalpeiron/Nalpeirond6b"
    "sudo chmod 0755 /etc/nalpeiron/DemoOver"

    To check the results ..

    "ls -l /etc/nalpeiron"

    which should show ..

    "-rwxr-xr-x 1 root wheel 46440 Aug 27 2014 DemoOver"
    "-rwxr-xr-x 1 root wheel 125984 Aug 27 2014 Nalpeirond6b"
     
  3. Finally, the plist file:

    Set its ownership and permissions

    In Terminal, type the command hereafter and press Enter after each command ..

    "sudo chown root:wheel /Library/LaunchDaemons/com.nalpeiron.netpro.plist"
    "sudo chmod 0644 /Library/LaunchDaemons/com.nalpeiron.netpro.plist"

    (Note: If no plist file is present, download the file from the link hereafter and copy it into the directory "/Library/LaunchDaemons/" - http://www.re-compose.com/downloads/tools/com.nalpeiron.netpro.plist)

    To check the results ..

    "ls -l /Library/LaunchDaemons/com.nalpeiron.netpro.plist"

    you should see ..

    "-rw-r--r-- 1 root wheel 352 Aug 27 2014 /Library/LaunchDaemons/com.nalpeiron.netpro.plist"
     
  4. Restart your machine 

After that, everything should be in place and working.
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