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Questions tagged [ubuntu-18.04]

GENERAL UBUNTU SUPPORT IS OFF-TOPIC. Support questions may be asked on https://askubuntu.com/. This tag should be used only for WRITING OR RUNNING PROGRAMS specifically in Ubuntu 18.04. If your question applies to other versions of Ubuntu, use [ubuntu] instead. If your question applies to other distributions of Linux, use [linux] instead.

Ubuntu 18.04 is a long term support (LTS) release that came out in April 2018. Important new features include a linux 4.15 kernel, Linux security module stacking support, and a default GNOME desktop.

Available for download as 64-bit version only.

Read the release notes for detailed information.

3638 questions
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can't create virtualenv on Ubuntu 18.04 with Python 3.8

I have a Docker file with the following: FROM ubuntu:18.04 RUN apt-get update --fix-missing RUN apt-get install -y software-properties-common RUN add-apt-repository -y ppa:deadsnakes/ppa RUN apt-get install -y build-essential RUN apt-get install -y…
skunkwerk
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4 answers

curl certificate fail in docker container

I have a Ubuntu 18.04 server behind a coporate proxy. I set the http_proxy and https_proxy environment variable. The server is running Docker 19.03 which is also configured to use the http_proxy and https_poxy. If a run docker run -it ubuntu:18.04,…
tweetysat
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Docker: Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting for connection

Since yesterday out of nowhere I'm not able to pull images anymore. And I can't login into docker with docker login. The same error appears: Error response from daemon: Get https://registry-1.docker.io/v2/: net/http: request canceled while waiting…
CptDayDreamer
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How can I downgrade or use PHP 7.2 without uninstalling PHP 7.4? Is it possible to use PHP 7.2 as default instead of the latest version?

I am using linux Ubuntu 18.04 And I wanna revert back to the previous version of PHP. I've seen tutorials that requires me to uninstall the latest version, now I am asking if there is a workaround in this problem such that I can easily switch from…
pauxplorer
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16
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3 answers

Gunicorn + nginx - Ignoring EPIPE

I have an nginx-gunicorn-flask setup running on google compute and I keep getting the following from gunicorn: [2019-04-19 20:50:49 +0000] [3345] [DEBUG] POST / [2019-04-19 20:50:49 +0000] [3345] [DEBUG] Ignoring EPIPE out of 100 requests about 23…
K41F4r
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How to remove Python 3.6 completely from Ubuntu 18.04

Both Python 2.7 and 3.6 are installed by default in Ubuntu 18. But I wish to use the Anaconda Python with conda package manager. To avoid any conflicts I wish to completely remove the default Python 3.6. Are there any way to do that? Please help.
Sandip Nath
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3 answers

Jupyter ImportError: cannot import name 'create_prompt_application' ubuntu 18.04

I have installed jupypter on Ubuntu 18.04. when I try to open .ipynb file it says trying to connect to server and fails eventaully. When I looked at the console I saw the following error : ImportError: cannot import name 'create_prompt_application' …
Amin Merati
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15
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3 answers

How to upgrade to PostgreSQL 11 for Ubuntu 18.04?

As the title suggests I want to upgrade my postgresql-10 to postgresql-11. I'm using ubuntu-18.04.
nicolom
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15
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3 answers

curl package not available for several R packages

I just installed ubunutu 18.04 and I successfully install R version 3.5.1. I am having problems installing R packages such as plotly. It seems that the packages curl and httr are not available. The full error message: >…
Alejandro Perez
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3 answers

How can I update pip3 to its latest version in Ubuntu 18.04?

I get this error when running pip3 install -U pip Output: Requirement already up-to-date: pip in ./dlenv/lib/python3.6/site-packages (10.0.1) launchpadlib 1.10.6 requires testresources, which is not installed. I have searched in apt and…
Sebin Benjamin
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14
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4 answers

Error installing tidyr on Ubuntu 18.04 & R 4.0.2

In trying to install the package tidyverse, I get errors in the installation of dependency tidyr. Here is the tail of the message I get: cpp11.cpp:31:100: error: ‘unmove’ is not a member of ‘cpp11’ return…
msoftrain
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14
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1 answer

Authenticating 'focal.tar.gz' against 'focal.tar.gz.gpg' fails

When trying to perform a do-release-upgrade to upgrade from Ubuntu 18.04 to 20.04 I am getting the below error Checking for a new Ubuntu release Get:1 Upgrade tool signature [1,554 B] …
Hiren
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14
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3 answers

import pandas results in ModuleNotFoundError :_lzma

On Ubuntu 18.04 with python 3.7.3, I'm attempting to import pandas but this fails because it can't find _lzma. I've verified that _lzma is installed with dpkg: /usr/lib/python3.7/lib-dynload/_lzma.cpython-37m-x86_64-linux-gnu.so. Oddly, _lzma is…
Marco Dalla Gasperina
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14
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2 answers

How to swich grid workspaces horizontally on Ubuntu18.04

I have successfully changed the vertical list workspaces to grid workspaces on Ubuntu18.04 by following command and application. sudo apt install gnome-tweaks gnome-tweaks gnome-tweaks -> Extensions -> workspace grid However, I cannot how to change…
Ryota Katsuki
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14
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1 answer

java.lang.ClassNotFoundException sun.misc.GC

Version Java: 10.0.1 Tomcat: 8.0.36 Ubuntu: 18.04 (64 bit) Eclipse: Photon (64 bit) Error: When I run the Tomcat server, I found below error. Please don't tell me to decrease the version if possible, because I love to use latest technology. …
user9373603
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