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Thread: Can't start synaptic package manager

  1. #1
    Join Date
    Aug 2010
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    133

    Can't start synaptic package manager

    ubuntu 12.04
    running on a usb memory stick
    lxde

    Several times I have used synaptic package manager in order to remove older
    kernels, and it has worked every time.
    I use a procedure I found on the internet.

    This time synaptic package manager would not open and I got an error message.
    Info:
    E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
    E: _cache->open() failed, please report.

    I do not understand the message, and I do not know how to resolve it.

    Thanks, if you could tell me what to do.

    Remark: The error occurred after updating to the latest kernel, and I have restarted.

  2. #2
    Join Date
    Jul 2008
    Location
    The Left Coast of the USA
    Beans
    Hidden!
    Distro
    Kubuntu

    Re: Can't start synaptic package manager

    An update was interrupted and things are in an odd state.

    In the terminal, do

    Code:
    sudo dpkg --configure -a
    and press enter. Enter your password carefully when prompted. It will appear as though nothing is happening when you type. This is a normal safety feature.

    The update process should continue and finish and things should be normal thereafter.

  3. #3
    Join Date
    Nov 2004
    Location
    Maine
    Beans
    1,696
    Distro
    Ubuntu 15.04 Vivid Vervet

    Re: Can't start synaptic package manager

    hi ubto66,

    The error message conatains the answer:
    go to a terminal and run the following command
    Code:
    sudo dpkg --configure -a
    Then run the following also:
    Code:
    sudo apt-get autoclean 
    sudo apt-get clean
    try to start synaptic from the same terminal with
    Code:
    sudo synaptic
    if it opens fine if not post any error messages you receive here
    Wireless script
    Dave
    Registered Linux User #462608
    Ubuntu 15.04 /14.04

  4. #4
    Join Date
    Nov 2010
    Location
    /Earth/Asia/India
    Beans
    218
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Can't start synaptic package manager

    You might have broken packages or you might have interrupted some installation process.

    Try :
    Code:
    sudo dpkg --configure -a

  5. #5
    Join Date
    Aug 2010
    Beans
    133

    Re: Can't start synaptic package manager

    Thank you for all the answers.
    You were right. It was an error regarding the last updating.
    I tried to update again, and though it said something about update errors
    in the terminal, during the update procedure, it finished updating and know
    synaptic package manager runs.

  6. #6
    Join Date
    Nov 2004
    Location
    Maine
    Beans
    1,696
    Distro
    Ubuntu 15.04 Vivid Vervet

    Re: Can't start synaptic package manager

    Glad you got it going
    when you have a moment please mare thread as Solved - thanks
    Wireless script
    Dave
    Registered Linux User #462608
    Ubuntu 15.04 /14.04

  7. #7
    Join Date
    Jun 2009
    Location
    DeKalb, IL
    Beans
    156
    Distro
    Xubuntu 12.04 Precise Pangolin

    Re: Can't start synaptic package manager

    Quote Originally Posted by kc1di View Post
    hi ubto66,

    The error message conatains the answer:
    go to a terminal and run the following command
    Code:
    sudo dpkg --configure -a
    Then run the following also:
    Code:
    sudo apt-get autoclean 
    sudo apt-get clean
    try to start synaptic from the same terminal with
    Code:
    sudo synaptic
    if it opens fine if not post any error messages you receive here
    Just ran into this problem, and wanted to say that this fix WORKED... autoclean hung the first time, but I ran clean, then autoclean and I'm back in business... I would attempt to open Synaptic PM or Ubuntu Software Center, it would flash on the screen, then disappear... NOW it works. Thanks, Gracias, Merci, Danke, Mahalo!!

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