I am currently using Ubuntu 18.04, and I need gcc 4.8 for MATLAB. So I tried to install gcc-4.8 using

$ sudo apt-get install gcc-4.8
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-libc-dev_4.15.0-117.118_amd64.deb  404  Not Found [IP: 2403:8940:3:1::f 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

so I ran the command

sudo apt-get update 

I didn't show any error but running gcc version command gave this

$ gcc -v
Command 'gcc' not found, but can be installed with:
sudo apt install gcc

previously I used to have 7.5 but now it is not.

2 Answers 2


Open the terminal and type:

sudo apt install linux-libc-dev 
sudo apt-get -f install
sudo apt install gcc-4.8
  • could you tell how to remove current version of gcc because i read the comment given by SEKHR i installed latest version once again could you tell me how to remove current version 7.5.0 and use old version sudo apt-get --purge remove gcc i tried by giving verion at end but it didnt work
    – SriHarsha
    Sep 28, 2020 at 7:00
  • There are two different ways to answer this comment 1. sudo apt remove gcc-7 (which removes gcc 7.5 in 18.04) 2. You can change the default gcc version by using the update-alternatives command to determine which actual file is referenced by a generic name, for example which actual file is referenced by gcc. For more information see the answers to this question: How to change the default GCC compiler in Ubuntu?.
    – karel
    Sep 28, 2020 at 7:14
  • it worked thank you
    – SriHarsha
    Sep 28, 2020 at 7:28

In your terminal type: sudo apt install gcc and enter. That should install the latest version of gcc.

If you want to install GCC 4.8 specifically, you may follow the post: How to install gcc-4.8.

As GCC 4.8 is available in the default repository on Ubuntu 18.04, then you can simply do

sudo apt-get install gcc-4.8

Or type sudo apt-get install gcc-4 in terminal and press tab. If GCC 4.8 is available it will either auto-complete or show the available versions. If there are versions available other than 4.8 as well, add .8 after sudo apt-get install gcc-4 and press enter to install.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.