No entry sign in the taskbar
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maxbhx
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BMMWW Posted messages 1503 Registration date Status Member Last intervention -
BMMWW Posted messages 1503 Registration date Status Member Last intervention -
Hello,
As indicated by the subject title, I have a problem with a 'no entry' sign in the taskbar; I have already searched the forum and apparently I am not the only one, except that (from what I read) the problems are very specific and therefore there is a different operation to perform for each case.
So when I click on this famous "no entry" sign, there is a text: "An error occurred. Please run the package manager from the context menu (right click) or apt-get in the terminal to see what is wrong. The error message was: "Error: opening cache (E:Opening/ect/apt/sources.list.d/nodesource.list-ifstream::ifstream (13:permission denied)
E:The list of sources could not be read.)"
Usually, this means that some of your installed packages have unmet dependencies."
Here is what is written, then there is a list of possibilities such as (show updates, install updates, check for updates, launch the package manager, display notifications, preferences)
I would like to add that I am a novice and I am using Ubuntu 16.04 lts.
Additionally, the Ubuntu software center is not working anymore.
Thank you in advance
Configuration: Linux / Firefox 50.0
As indicated by the subject title, I have a problem with a 'no entry' sign in the taskbar; I have already searched the forum and apparently I am not the only one, except that (from what I read) the problems are very specific and therefore there is a different operation to perform for each case.
So when I click on this famous "no entry" sign, there is a text: "An error occurred. Please run the package manager from the context menu (right click) or apt-get in the terminal to see what is wrong. The error message was: "Error: opening cache (E:Opening/ect/apt/sources.list.d/nodesource.list-ifstream::ifstream (13:permission denied)
E:The list of sources could not be read.)"
Usually, this means that some of your installed packages have unmet dependencies."
Here is what is written, then there is a list of possibilities such as (show updates, install updates, check for updates, launch the package manager, display notifications, preferences)
I would like to add that I am a novice and I am using Ubuntu 16.04 lts.
Additionally, the Ubuntu software center is not working anymore.
Thank you in advance
Configuration: Linux / Firefox 50.0
1 answer
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Apparently there is a faulty line in the sources list.
You open the terminal and type:
sudo apt-get update
Your PC will probably tell you it can't read line No...
If that's the case, you type in the terminal:
sudo gedit /etc/apt/sources.list
This will open the sources list and you delete the mentioned line, save it (at the top) and then run:
sudo apt-get update