I try to use Xvfb to make the headless code run. However, I encountered the problem that "Xvfb not found on your system" when I tried to run my ruby code. Then I tried to install Xvfb using
sudo apt-get install xvfb
However, "apt-get: command not found" is showed. Thus, I have not idea what should be installed to avoid the original Xvfb error. Any helps? Thank you.
Old question, but found it will trying to find the apt-get commands. The command not found is likely because you are not on a debian system. So you should probably be using yum.
Some potentially useful links:
https://serverfault.com/questions/344793/install-xvfb-via-yum-yum-repository-for-xvfb
How to install Xvfb (X virtual framebuffer) on Redhat 6.5?
In CentOS 7, the following command will install it:
$ sudo yum install xorg-x11-server-Xvfb
Related
First, I running Cloud9 on Docker (using with linuxserver/cloud9) on Raspbian
and installed build-essential on Cloud9
When I tried to run C code (such as printing hello world), it says
Compiling /code/first_c.c ...
cc first_c.c -o first_c
bash: line 6: node: command not found
Process exited with code: 127
Should I install something more? or how can I solve it?
If you just want to run C code, you don't need node, but you have to first install gcc by opening a terminal and running:
sudo apt update && sudo apt install gcc
Then check that your runner is C (simple) and that you have uncheck the icon Run in debug mode.
If you want to run in debug mode you have to install node and gdb with:
sudo apt install nodejs gdb
== Update ==
P.S.: When gdb is not installed, C9 shows wrongly :
"gdbserver" is not installed
This is a bug: corrected by this (yet) non-merged PR.
I'm getting this warning when running the phpunit test suite in Jenkins pipeline.
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20160303/pdo_sqlite.so' - /usr/lib/php/20160303/pdo_sqlite.so: undefined symbol: sqlite3_column_table_name in Unknown on line 0
However this warning is not thrown when running the test suite directly in terminal.
I have PHP 7.1 in my system and this is the only PHP version I have installed. php7.1-sqlite3 is installed.
Thank you in advance.
As far as I have found out, there is a faulty file in /usr/local/lib called libsqlite3.so.0 which points to libsqlite3.so.0.8.6. I renamed the file in case it was needed for something. With the command:
cd /usr/local/lib
sudo mv libsqlite3.so.0 ./libsqlite3.so.0.back
But you can also delete it:
rm libsqlite3.so.0
The thread that lead me to the answer: link
This solved my problems, and I hope they solve yours as well :)
I had this same issue with PHP 7.1 on Ubuntu 16.04.
Running the following fixed the issue for me:
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.1-sqlite3
Have you built SQLite from source? If yes, enable Column metadata and recompile with
CFLAGS="-DSQLITE_ENABLE_COLUMN_METADATA=1" ./configure
make
sudo make install
Have fun using the cutting edge SQLite.
Reference - https://www.sqlite.org/compile.html#enable_column_metadata
After following the official installation document below
https://docs.docker.com/engine/installation/linux/centos/
I still end up with failure with docker-common-2 transaction conflict
Transaction check error:
file /usr/bin/docker from install of docker-engine-1.13.0-1.el7.centos.x86_64 conflicts with file from package docker-common-2:1.10.3-59.el7.centos.x86_64
I tried yum remove docker-common-2 immediately but apparently there is no such package found so I yum clean all but the failure is still there.
I had encountered that selinux conflict before and I did remove conflict the package docker-selinux if it is the case.
How can I solve this?
OK I managed to solve it by myself.
I searched for docker-common instead of docker-common-2 and I found that conflict package. It should be installed from centos yum repos so just yum remove -y docker-common to remove it before you install docker-engine
Try the following:
step 1: sudo yum erase docker
step 2: sudo yum clean all
and then, Install the required packages,
step 3: sudo yum install docker-common-2
After remove docker its good to run following
sudo yum autoremove
Remove packages that has not dependencies and can be removed from machine.
"yum autoremove" tries to remove any packages that waren’t installed explicitly by the user and which aren’t required.
Using the flowing command solve the problem, actually it is easier.
curl -fsSL https://get.docker.com/ | sh
I'm trying installing Erlang on my REHL7.2, but unfortunately I failed. I tried two approaches
First I tried downloading a RPM package from official site of erlang (in fact the rpm package is for CentOS, but there's no RPM package for RHEL anyway), but
error: Failed dependencies:
libwx_baseu-2.8.so.0()(64bit) is needed by esl-erlang-19.0-1.x86_64
libwx_baseu-2.8.so.0(WXU_2.8)(64bit) is needed by esl-erlang-19.0-1.x86_64
Then I tried
$ wget http://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm
$ rpm -Uvh erlang-solutions-1.0-1.noarch.rpm
But it failed too because
No package erlang available.
Error: Nothing to do
I wonder whether Erlang is no longer supported by RHEL? Otherwise how can I install Erlang on my RHEL7.2?
One simple solution to install the Erlang Solutions package is install the epel repository:
yum install epel-release
Then
wget https://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm
rpm -Uvh erlang-solutions-1.0-1.noarch.rpm
sudo yum install erlang
The epel repo contains the libwx_* libraries required.
As instructed here:
enter link description here
Run the following commands (note: the commands on the above link use R15B01, but in the following commands, I changed it to the last release of Erlang (R15B03) It will take a while to finish with the installation. Run commands line by line
sudo yum install gcc glibc-devel make ncurses-devel openssl-devel autoconf
wget http://erlang.org/download/otp_src_R15B03.tar.gz
tar zxvf otp_src_R15B03.tar.gz
cd otp_src_R15B03
./configure && make && sudo make install
After everything is done, you will be still at otp_src_R15B03 where Erlang is installed. Type erl and Enter, then, it should run and open Erlang prompt. I tried running Erlang from my home directory and from the root by just typing erl and it worked too. This way, Erlang is working good for me. To quit Erlang press CTRL + g then q and Enter
There is another way to install and useful info on this link:
enter link description here
I have figured it out! I found two solutions.
The first solution which is also the easiest way is to install a zero dependency version of erlang, please refer to my another Question. But I only tried this way after installing erlang from source, so if you failed this way, just try the following soltuion.
The other one is to build erlang from source (or by kerl which is essentially the same thing).
Install necessary dependencies:$sudo yum install ncurses-devel openssl-devel *openjdk-devel unixODBC unixODBC-devel
Download source code of erlang, unzip it and cd into the direcotry
sudo ./configure sudo make sudo make install
Please refer to this article.
Thank you everyone!
Try this, worked for me.
wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -ivh epel-release-latest-7.noarch.rpm
sudo yum install erlang erlang-nox
I have been trying some different java compilers over the weekend and decided to stick with javac this morning. I then proceeded to clean up the mess that was caused by my testing and removed every last trace of java and did a fresh 'apt-get install openjdk-6-jdk' after autoremove and autoclean.
The following weirdness was then encountered:
tarskin#5-PARA-11-0120:~$ javac
The program 'javac' can be found in the following packages:
* openjdk-6-jdk
* ecj
* gcj-4.4-jdk
* gcj-4.6-jdk
* gcj-4.5-jdk
* openjdk-7-jdk
Try: sudo apt-get install <selected package>
I had allready installed openjdk but i tried it anyhow yielding:
tarskin#5-PARA-11-0120:~$ sudo apt-get install openjdk-6-jdk
[sudo] password for tarskin:
Reading package lists... Done
Building dependency tree
Reading state information... Done
openjdk-6-jdk is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
tarskin#5-PARA-11-0120:~$
I know i must be doing something stupid but I have no idea what, if anyone else could give a pointer in the right direction that would be very much appreciated...
Cheers
EDIT: Found some other weird aspects about the 'new' instance of my java distro, it doesn't seem to recognise for example 'Pattern' or 'Matcher' that should be coming from the regex import shrugs.
TL;DR: install java-1.6.0-openjdk-devel
I had a similar issue on Fedora, but used rpm -q -l to list the contents of the (pre-installed) java-1.6.0-openjdk package, and discovered that it doesn't include javac. It is in fact only a JRE, not a JDK, as implied by the installation instructions on http://openjdk.java.net/install/ . To get javac, I installed java-1.6.0-openjdk-devel . Not exactly what I expected, because the usual packaging conventions would indicate that is the package for doing openjdk development (i.e., working on the JVM), not for developing programs with it.
Basically, openjdk's package naming doesn't follow either standard Java conventions (would require calling it a JRE somewhere), or standard Linux packaging conventions (using -devel indicates it is used for developing the package w/o -devel itself).
As per http://openjdk.java.net/install/, to install the OpenJDK-6 JRE only:
$ sudo apt-get install openjdk-6-jre
To install the full JDK:
$ sudo apt-get install openjdk-6-jdk
Check /etc/alternatives and /usr/bin. One or both will contain links to old Java versions which you had installed. When those links are broken, you can get the error message above.
To update the links after installing a new version of Java, try update-alternatives
First to check if javac is installed try to look for that file:
1. locate javac
2. or find / -name javac
And also you can check at this website with instrucions on how to install java on Ubuntu (i suppose you are on ubuntu):
http://openjdk.java.net/install/
You can also check:
http://packages.ubuntu.com/hardy/i386/openjdk-6-jdk/filelist for the files installed by the pacakge, and you can notice that javac should be installed.
Maybe you also need to run:
Open the terminal and run this command to install OpenJDK 7.0 on Ubuntu Oneiric:
sudo update-alternatives --config java