Error in Simulator installation

Schematic Simulation (Ngspice)
1

I’m getting this:

E: /var/cache/apt/archives/libngspice-kicad_0.1-42~202402021044+902a62d2f~ubuntu20.04.1_amd64.deb: trying to overwrite ‘/usr/lib/x86_64-linux-gnu/ngspice/analog.cm’, which is also in package ngspice 31.3-2

I’m on Linux Mate up-to-date 20.04 I think with a Kicad install from today.

Application: KiCad x86_64 on x86_64

Version: 8.0.3-8.0.3-0~ubuntu20.04.1, release build

Libraries:
wxWidgets 3.2.1
FreeType 2.10.1
HarfBuzz 2.6.4
FontConfig 2.13.1
libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3

Platform: Ubuntu 20.04.6 LTS, 64 bit, Little endian, wxGTK, X11, mate, x11

Build Info:
Date: Jun 4 2024 12:41:44
wxWidgets: 3.2.1 (wchar_t,wx containers) GTK+ 3.24
Boost: 1.71.0
OCC: 7.6.3
Curl: 7.68.0
ngspice: 42
Compiler: GCC 9.4.0 with C++ ABI 1013

Build settings:

Rgds,
Steve

2

Nice message, because it does not answer: is it successfull overwriting or does it stop?

You have a (5 year old) ngspice-31 installed (package ngspice 31.3-2). Unfortunately analog.cm (additional libs for ngspice) etc. are not compatible with new ngspice-42 (from KiCad). So uninstall ngspice-31 before installing KiCad.

Of course then the standard, standalone ngspice executable is missing from your setup. I do not know if ngspice-42 is available for Ubuntu 20.04.

3

Thanks. I had to uninstall the ngspice and the Kicad. I have re-installed. At least there are no broken packages now. I’ve never used the simulation software so I don’t know if it is working.

I think my new task will be to change everything over to Ubuntu Mate 24.04. I’m not looking forward to it !

4

It stops… in fact it impeaches ngspice, whatsoever version to be installed while Kicad remains installed.

The ngspice-42 already built isn’t available for Ubuntu 20.04, in fact is only available in the default package repos in Ubuntu 24.10 “Oracular Oriole”.

HTH