Basic install failed - could not successfully build muplen64plus

RonReese

@mitu how do I switch the RetroArch output video driver please? And as I stated when I've tried the command to get the log file I get 'Permission Denied' when I type it in so I haven't been able to get one

RonReese

@buzz I went onto retropie and chose the linux 32 bit instructions so would that be v.1.7.3?

mitu

@ronreese Modify the /opt/retropie/configs/all/retroarch.cfg and find the line with

# video driver = gl

Modify it so it becomes

video_driver = sdl2

then try again to start a Libretro emulator - try a NES/SNES/Arcade game that was not working.

As for the log file, as @buzz said, if you're running a 32 bit Lubuntu installation, installation won't work. TO copy the log file, go to a command prompt and change it's permissions with sudo

sudo chown $USER <file>

where $USER is your username and <file> is the full path to the file.

RonReese

@mitu Sorry me again, as I stated I'm new to linux and do appreciate your help, does 'Modify' mean open a terminal and type in that line of script? Or should I be doing something else? I've just opened a terminal and typed the /opt/etc. in and it stated Permission Denied again so maybe that;s not what you meant?

mitu

@ronreese No, modifying means using a text editor to modify the file's contents. When you type directly a path in the command line, the shell is trying to execute it as a command, but directories are not executable, hence the error.
If you have a graphical desktop, then use something like leafpad or geany to edit the file (they might be already installed, if not you can install them from the software center). If you're on a command line use nano as an editor and type name /path/to/file to open it up and modify it.

RonReese

@mitu erm again, i've got leafpad but after that i'm completely lost, I am a complete noob to linux, how do i use it to edit a file in retropie? it looks like notepad on windows

mitu

@ronreese Sorry, it seems you're also a beginner with using a computer ?
You might want to start with a linux user guide to familiarize yourself with the concepts of the operating system and its applications.

RonReese

@mitu No I've been using a computer for a long time but on windows so I've never had to do anything like this before

RonReese

@ronreese anyway I finally managed to figure it out, changed the video setting in the config file and it didn't fix it, it's still the same. I'll try to get the log file this evening now I understand a bit more about what I'm doing.

mitu

OK, that's progress. Can you upload the retroarch.cfg file you modified on pastebin.com and provide the link, so we can check its contents ? Do the same for the log file for the compilation of the Mupen64plus emulator.

RonReese

@mitu Yes will aim to do so, sorry for the delay had a busy weekend

RonReese

@mitu here's the cfg file https://pastebin.com/Y07UZdjG

mitu

@ronreese This is the default file - you didn't modify the video_driver line as I indicated in a previous post. Of course it won't work.

RonReese

@mitu I did then I had to change it back, as I stated it didn't work and I couldn't use anything on the laptop when I tried to load a game, the whole screen went blurred

mitu

Can you try updating RetroArch now and see if it works ?

RonReese

@mitu is there a new version of Retroarch to update to? or do you mean modify the video driver again?

mitu

@ronreese I mean just do an update of the RetroArch package from the RetroPie-Setup script or just just to update all packages. I think there's a new build of RA that disables the wayland video driver, which has been causing problems for some people using Ubuntu 18.04.

RonReese

@mitu OK that sounds good, I'll give it a go when I'm home

RonReese

@ronreese thanks for all of your help

knightofdespair

@buzz said in Basic install failed - could not successfully build muplen64plus:

mupen64 currently fails on 32bit installs - should work on 64bit Ubuntu.

64 bit breaks a lot of other things. Why is the 32 bit not working?