I am trying to stream jpgs using Motion JPEG streamer. I need to install package libv41-dev as a required library and when I install sudo apt-get install libv41-dev, I get Unable to locate package libv41-dev error. Why can't locate that package? I searched in google for that libv41-dev, not much information has come out. That library is required for linux/videodev.h file. Thanks
The library is libv4l-dev. You can install using the command
sudo apt-get install libv4l-dev
Make sure it’s not libv41 it’s libv4l ( letter l )
Related
I created an offline repo for RHEL 8:
downloaded all needed packages with dnf download
create repodata with createrepo command
I'm able to install most of the packages in offline mode but python3 can't be installed
The error I'm receiving is:
No available modular metadata for modular package 'python36-3.6.8-2.module+el8.1.0+3334+5cb623d7.x86_64', it cannot be installed on the system
Error: No available modular metadata for modular package
What can I do to fix this?
Regards,
It seems this worked for me: https://unix.stackexchange.com/questions/567057/download-rpm-and-all-dependencies-on-rhel-centos-8
There are some packages required like: python3-createrepo_c libmodulemd
And Python module: click
It may be that you need Development Tools:
$ sudo yum groupinstall ‘Development Tools’
See https://developers.redhat.com/rhel8/hw/python
I first installed Open Babel through brew. When I tried to run the command: "obabel -:"CC(=O)Cl" -opng -O mymol.png", I got this error message: " Open Babel Error in PNG Format
PNG2Format not found. Probably the Cairo library is not loaded." I then proceeded to use brew to uninstall Open Babel. Then, I installed Cairo with brew and then installed Open Babel with brew again. Still though, I try to create a PNG output and it gives me the same error message. I just do not know what's going on??
I’ve found that when using brew to install open-babel, I do not need to install Cairo in a separate step. The open-babel formula includes a '--with-cairo’ option that installs all the required dependencies, including Cairo.
Here is how I installed open-babel with Cairo support:
$ brew install --with-cairo open-babel
I'm curious about ClutterGtk, and want to see if GtkClutterEmbed could fit in my current task. But I have ClutterGdk in GI repository, and sudo apt-get install clutter-gtk isn't going to work.
I've found some resource around, but before trying them, I'd like to know if I'm missing the proper way to install.
edit
after suggestion by #jku, I tried
$ sudo apt-get install libclutter-gtk-1.0-0
but I get
...
libclutter-gtk-1.0-0 is already the newest version
so, since I cannot spot the related typelib in /usr/lib/girepository-1.0, what's going on ? Should I attempt to build the typelib by myself ?
The typelib files for GObject introspection on Debian are in the gir1.2-* packages.
Clutter-GTK's typelib file is provided by the gir1.2-gtkclutter-1.0 package.
I am trying to follow the HARTL tutorial on nitrous.io, trying to install libraries I get the error....
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
When I try to enter...
apt-get install libxslt-dev libxml2-dev libsqlite3-dev
How can I run this command without root? I saw some reference to this issue here... Install libraries on nitrous.io however, I don't understand how prefixing works. I tried to run....
/home/action apt-get install libxslt-dev libxml2-dev libsqlite3-dev
But, get the error...
-bash: /home/action: Is a directory
Thank you.
If you chose the Rails box template, you can skip this. You can probably start right out on Section 1.2.3 of Chapter 1.
apt (or dpkg, in general) cannot install packages into some user-provided path; packages installed into system paths specified within them.
Link you referred to addresses configure, as it accepts --prefix argument. It have nothing to do with apt. configure usually used to build software from sources.
i am Nobe about python and its package,
I want to install networkx package for some graph calculation. I found it https://pypi.python.org/pypi/networkx/1.8.1 . But the file is .egg.
Please help me to install that *.egg file for my python3.3 .
Thank you, in advance
The install docs show you several ways to install networkx. pip is one of the easiest ways to get python packages installed (managing dependencies and updates etc).
On debian systems you can install pip by running:
sudo apt-get install python3-pip
(note that there are typically different packages for pip3 and for pip2)
and then you should be able to install networkx as follows:
sudo pip3 install networkx
If you use windows maybe read How do I install pip on Windows? to get started with pip.