install QUCS-S with ngspice41 under UBUNTU 22.04

[olisnr]

i need a newer ngpice version because of verilog-a models. i installed the version 4.1 from source. but now i cant install QUCS-S, because it wants to overwrite some files.

the thing is, before installing ngspice41 i was able to install QUCS-S 2.0.0.1. but i was only able to install ngspice41 after removing QUCS-S.

i dont understand whats going on:

ich@t14:~$ sudo apt install qucs-s Reading package lists... Done Building dependency tree... Done Reading state information... Done qucs-s is already the newest version (2.0.0-1). You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies: qucs-s : Depends: ngspice but it is not going to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). ich@t14:~$ sudo apt --fix-broken install Reading package lists... Done Building dependency tree... Done Reading state information... Done Correcting dependencies... Done The following additional packages will be installed: ngspice Suggested packages: ngspice-doc The following NEW packages will be installed: ngspice 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. Need to get 0 B/2’353 kB of archives. After this operation, 7’972 kB of additional disk space will be used. Do you want to continue? [Y/n] (Reading database ... 676307 files and directories currently installed.) Preparing to unpack .../ngspice_36+ds-1_amd64.deb ... Unpacking ngspice (36+ds-1) ... dpkg: error processing archive /var/cache/apt/archives/ngspice_36+ds-1_amd64.deb (--unpack): trying to overwrite '/usr/lib/x86_64-linux-gnu/ngspice/analog.cm', which is also in package libngspice-kicad 0.1-38~202211100131+14f42f805~ubuntu22.04.1 dpkg-deb: error: paste subprocess was killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/ngspice_36+ds-1_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) ich@t14:~$

[olisnr]

the formating was bad. i try again

ich@t14:~$ sudo apt install qucs-s
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
qucs-s is already the newest version (2.0.0-1).
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 qucs-s : Depends: ngspice but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
ich@t14:~$ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
  ngspice
Suggested packages:
  ngspice-doc
The following NEW packages will be installed:
  ngspice
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
Need to get 0 B/2’353 kB of archives.
After this operation, 7’972 kB of additional disk space will be used.
Do you want to continue? [Y/n] 
(Reading database ... 676307 files and directories currently installed.)
Preparing to unpack .../ngspice_36+ds-1_amd64.deb ...
Unpacking ngspice (36+ds-1) ...
dpkg: error processing archive /var/cache/apt/archives/ngspice_36+ds-1_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/ngspice/analog.cm', which is also in package libngspice-kicad 0.1-38~202211100131+14f42f805~ubuntu22.04.1
dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/ngspice_36+ds-1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
ich@t14:~$ 

[ra3xdh]

It is not a bug in Qucs-S. You have a broken dependency, because you have installed ngspice to default prefix /usr/. Now Ngspice-41 is conflicting with system package. Be careful when installing something with make install. You should always specifiy prefix in /opt/ or another location to avoid such conflict. Use the following configure for Ngspice:

configure --prefix=/opt/ngspice-41 <other_options>

This will install Ngspice-41 to /opt

[ra3xdh]

Also try to remove libngspice-kicad This may be package conflict in Ubuntu.

[ra3xdh]

Ubuntu doesn't provide libngspice-kicad in system repository. Where did you take it? It may have conflicts.

[olisnr]

i installed ngspice41 from source. and in basically i would like it to be the standard ngpsice, because of the OSDi models. i would prefere to install QUCS-S also from source, so that it dont have to install old versions. or i could try the flatpak... may be i find a soluiton...

[olisnr]

building from source is working with ngspice41. thaks for Your help!

[ra3xdh]

I did more investigation on this. The ngspice-kicad from KiCAD PPA conflicts with ngspice from system repository. The ngspice-kicad provides only shared library and cannot serve as the replacement for system ngspice. I have informed PPA maintainer about this issue. Waiting for reaction.

The following workaround is proposed:

• I have moved ngspice package to the recommended packages. At least this will allow to install Qucs-S if KiCAD PPA is enabled and avoid building Qucs-S from source.
• The ngspice-kicad package is not sufficient for Qucs-S. The simulation will not work with it. The Ngspice is required to be build from source and installed in /opt
• It is possible to switch KiCAD version from PPA to system repository. The KiCAD package from system repository has no conflicts with ngspice
• You may remove the ngspice-kicad package if you don't need SPICE simulation with KiCAD. This makes possible installation of the system ngspice package.

NOTE: only PPA KiCAD version is affected. No additional actions required if you are using KiCAD from system repository.

[ra3xdh]

After some experiments the following workaround was found:

• remove ngspice-kicad package
• install qucs-s , ngspice , and libngspice0
• simulation will work in both KiCAD and Qucs-S+Ngspice

You may require to compile Ngspice from source if the version higher that repository package is required.

[olisnr]

yes, compiling ngspice from source is the best way

[ra3xdh]

See https://gitlab.com/kicad/packaging/kicad-ubuntu-builder/ngspice-kicad-pkg/-/issues/4

[ra3xdh]

I cannot provide the full fix for this issue on Qucs-S package level. Need to wait until ngspice-kicad maintainer will resolve the conflict with the system package. Still be no reaction from KiCAD team. Closing for now.