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can't install ros on ubuntu?

asked 2017-04-24 19:38:52 -0500

nikhil98 gravatar image

updated 2017-04-25 04:15:55 -0500

gvdhoorn gravatar image

I'm new to Linux, so I followed the install instruction, created a source list and generated key.

On updating

sudo apt-get update

Get:1 xenial-security InRelease [102 kB]     
Get:2 xenial InRelease [4,037 B]            
Hit:3 xenial InRelease                     
Get:4 xenial-updates InRelease [102 kB]
Get:5 xenial-backports InRelease [102 kB]  
Get:6 xenial/main amd64 Packages [326 kB]   
Get:7 xenial/main i386 Packages [291 kB]
Err:7 xenial/main i386 Packages
  Hash Sum mismatch
Fetched 602 kB in 1s (336 kB/s)   
Reading package lists... Done
E: Failed to fetch  Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.

I got this error. On further following the steps i ended up with

sudo apt-get install ros-kinetic-desktop-full
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package ros-kinetic-desktop-full

so please help.

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Please post the contents of /etc/apt/sources.list.d/ros-latest.list.

Geoff gravatar image Geoff  ( 2017-04-24 20:58:19 -0500 )edit

Thanks for reply. Here are the contents: $ cat /etc/apt/sources.list.d/ros-latest.list

deb xenial main

nikhil98 gravatar image nikhil98  ( 2017-04-25 07:55:31 -0500 )edit

That looks fine. Does apt-get update still give an error?

Geoff gravatar image Geoff  ( 2017-04-25 08:22:16 -0500 )edit

yes it dose. are there any alternatives to install ros.

nikhil98 gravatar image nikhil98  ( 2017-04-25 09:36:32 -0500 )edit

Yes, you can install from source. But it would take a while to compile. For the benefit of you and anyone else who has the same problem in the future, I hope we can fix the actual problem.

What does lsb_release -a print?

Geoff gravatar image Geoff  ( 2017-04-26 02:42:46 -0500 )edit

According to this question, running apt-get clean and then running apt-get update again may work. Also deleting /var/lib/apt/lists/* also helps, apparently.

Geoff gravatar image Geoff  ( 2017-04-26 02:47:05 -0500 )edit

thanks a lot. it worked.

nikhil98 gravatar image nikhil98  ( 2017-04-26 07:26:52 -0500 )edit

2 Answers

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answered 2017-04-26 18:40:21 -0500

Geoff gravatar image

According to this question, running apt-get clean and then running apt-get update again may work. Deleting /var/lib/apt/lists/* also helps, apparently.

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answered 2019-04-07 08:06:08 -0500

max_f gravatar image

Hello! I can install ROS on Ubuntu 18.10.

Not Found [ 80]

Error: repositary cosmic release does not contain file Release

Is it possible to download and install in another way?


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Please do not post your own question as an answer or comment in response to an existing question. Please post a new question after searching for existing answers that may solve your problem. See the support guidelines for how to use ROS Answers effectively.

Geoff gravatar image Geoff  ( 2019-04-14 18:33:40 -0500 )edit

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Asked: 2017-04-24 19:38:52 -0500

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Last updated: Apr 26 '17