Does it matter which version of Linux you use?

I followed the uspace build instructions for Linux Mint 19 on my laptop, to get a LinuxCNC simulation version for G-code development.
It failed when I tried to use the package installer to install linuxcnc-uspace-dev_2.8.0-pre1_amd64.deb with the message:
Error: Dependency is not satisfiable: linuxcnc-uspace (=1:2.8.0-pre1).

Is there a simulation only executable that can be directly installed as a usual program?
I don't care much about the version as it is for G-code development only. Nor about the building clutter left behind on my laptop.

Elco

You need the userspace version, not the userspace-dev.

Sorry, posted to the wrong topic. (too many tabs open at once.)

That works. Thanks!

I tried this source of debian stretch
( linuxconfig.org/debian-apt-get-stretch-sources-list )
but get the following error when attempting to update the repository
GPG error: security.debian.org stretch/updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9D6D8F6BC857C906 NO_PUBKEY AA8E81B4331F7F50The repository ' security.debian.org stretch/updates InRelease' is not signed.
This is essentially the same error as I previously received when using the mirror.
Do you have any suggestion as to how I might proceed?
The computer is running Linux Mint 19.1 (Tara).

Searching for that error (and key) finds:

forums.debian.net/viewtopic.php?t=133569

I suggest reading all of it before applying the first solution given, though.

Thanks I will read the debian thread you have posted although I have since reformatted my machine then used the Linuxcnc on Linux Mint 19.1 quick and easy installation thread to install the kona-RT kernel on Mint 19.3.
It does not read G-code correctly but is sufficient for me to write some user documentation material for training purposes.

ytiuqibu wrote: It does not read G-code correctly ..........

What do you mean by that ?

If I generate a gcode file for a job LinuxCNC reports errors in the gcode file that it cannot resolve to display in Axis GUI - the same file brought into LinuxCNC 2.7.4 running on Debian Wheezy (yes its an old machine) displays happily in Axis and runs.
The problem may be that I have installed this on my home machine which is using Linux MINT 19.3 - that pc is not connected to cnc hardware as I only require to run LinuxCNC to capture screenshots to write instructions for new users of our actual CNC machine which is located a few kilometres from my home.

ytiuqibu wrote: If I generate a gcode file for a job LinuxCNC reports errors in the gcode file that it cannot resolve to display in Axis GUI - the same file brought into LinuxCNC 2.7.4 running on Debian Wheezy (yes its an old machine) displays happily in Axis and runs.

What is the error? Is it something related to the axis limits?
Or, possibly, the number of digital outputs being different in the two configs.