when installing Geant4 with multi-threading , gives the eror of something of linux ?

[priyanshu-agrawal]

Hi Experts,

I was installing Geant4 software in my system (Ubuntu 18 )with using multi-threading but getting the below error. i am not getting this why i am facing this problem.
i have asked on Geant4 forum if it was the Geant problem but they were suggesting to ask here.
so can anyone please help me with this. it will be very helpful.
waiting for a reply!
Thanks & Regards
Priyanshu
[IMG]scp IMG_20210907_150828209.jpg priyanshu@ubuntuforums.org[/IMG]

[Impavidus]

/usr/lib/x86_64-linux-gnu/libGL.so is provided on 18.04 by the packages libglvnd-dev (vendor neutral) and nvidia-340, for those who need that nvidia driver. You need the file (actually a symlink, I presume) to compile software using openGL. On my 21.04 system the symlink is in the package libgl-dev, which in 18.04 is a virtual package provided by libgl1-mesa-dev, which in turn pulls in libglvnd-dev, which is the actual package you need.

I suggest you install libgl1-mesa-dev. Use your favourite package management tool. If you want the terminal, use

sudo apt install libgl1-mesa-dev

[priyanshu-agrawal]

Thank you very much for you reply!
i have done this, this is showing me this.what does that mean , i didn't understand as i am new to this OS.
can you please tell what should i do now ?

Thanks in advance!
Priyanshu

[priyanshu-agrawal]

so sorry, i have uploaded wrong images.
and i am not getting how can i remove those.
attaching new one for which i was taking about.

[priyanshu-agrawal]

now, again trying to install with multi-threading then it is again the same problem occurring why so , really i am not getting this.
please see the attachment below.

[QIII]

Hello!

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[priyanshu-agrawal]

now, again trying to install with multi-threading then it is again the same problem occurring why so , really i am not getting this.
please see the attachment below.

[monkeybrain20122]

On my system (Ubuntu20.04)

$dpkg -S /usr/lib/x86_64-linux-gnu/libGL.so
libgl-dev:amd64: /usr/lib/x86_64-linux-gnu/libGL.so

So you need to install libgl-dev

sudo apt install libgl-dev

[monkeybrain20122]

Looks like you don't need to build it from source, there is a ppa for geant4. So just add it to your sources list and install it like any package

sudo add-apt-repository ppa:kaktusjoe/g4dist
sudo apt update
sudo apt install geant4

[Impavidus]

On my system (Ubuntu20.04)

$dpkg -S /usr/lib/x86_64-linux-gnu/libGL.so
libgl-dev:amd64: /usr/lib/x86_64-linux-gnu/libGL.so

So you need to install libgl-dev

sudo apt install libgl-dev

Yes, but it apears to be somewhat different on 18.04.

Looks like you don't need to build it from source, there is a ppa for geant4. So just add it to your sources list and install it like any package

sudo add-apt-repository ppa:kaktusjoe/g4dist
sudo apt update
sudo apt install geant4

A PPA is definitely easier than installing from source, even for people who are not new to Ubuntu. Installing from source is a last resort. So I suggest you try the PPA. If that doesn't work, we can look further.