Questions tagged [mono]

Mono is an open source project aimed at bringing .NET compatible technology to the open source world. This technology includes a C# compiler and the Common Language Runtime.

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System namespaces missing MonoDevelop on fresh install

I am wondering if anyone can help me, I did a fresh install of MonoDevelop on a fresh install of Ubuntu 18.04.2 LTS with .NET Core 2.2 installed (everything updated), then followed the instructions ...
BillyJoe's user avatar
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3 votes
1 answer
325 views

Is mono-devel needed?

Ubuntu 18.04, Cinnamon. Recently installed Pinta and it has that issue where it just crashes and closes. It's no longer supported unfortunately so searched and came up with a supposed fix. It was ...
Jim_HiTek's user avatar
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4 votes
0 answers
4k views

How can I instal Docky on Ubuntu 19.04

I've been using Docky for almost 10 years. Yesterday I upgraded Ubuntu to 19.04 and to my surprise I realised that during the upgrade Docky got removed. I tried adding Docky PPA again, but got the ...
Томица Кораћ's user avatar
0 votes
1 answer
2k views

how to install mono on ubuntu 18.04

this is the code that i'm trying to use sudo apt install gnupg ca-certificates sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF echo "...
pumpkindonuts's user avatar
0 votes
0 answers
684 views

Installing mono on ubuntu: mono-devel : Depends: libglib2.0-0 (>= 2.56.3) but 2.56.1-2ubuntu1 is to be installed

I'm following https://www.mono-project.com/download/stable/#download-lin-ubuntu to install mono on ubuntu. However in the last step I get sudo apt install mono-devel Reading package lists... Done ...
Guerlando OCs's user avatar
0 votes
1 answer
646 views

mono update - ca-certificates-mono - available 240 looking for 268

There has been some time that mono would not update. The problem is that this message stops other updates so even if I try to remove mono-develop I am failing. apt-get says: mono-devel : Depends: ca-...
Lj MT's user avatar
  • 149
2 votes
0 answers
92 views

Package monodevelop-database is not available, but is referred to by another package [duplicate]

I was trying to install mono, but the command: sudo apt-get install monodevelop-database is not working. How can I solve this?
Chakma's user avatar
  • 121
1 vote
0 answers
47 views

Mono view supported .net frameworks

Is there any way of viewing which .Net frameworks are currently installed/supported by my installation of mono? Currently using a Ubuntu Server 18.04 system. Using the command # mono -V tells me the ...
MathewH's user avatar
  • 161
0 votes
1 answer
2k views

install mono on ubuntu server 18.04 [duplicate]

I have install a new ubuntu server 18.04 and I have also run a update and a upgrade. I did follow this guide to install the latest mono https://www.mono-project.com/download/stable/#download-lin and I ...
Cazz's user avatar
  • 145
15 votes
1 answer
95k views

How can I "install" fonts to use in Visual Studio Code?

I have this beautiful mono font https://github.com/tonsky/FiraCode that I'd like to use in Visual Studio Code in Ubuntu. I downloaded the font files (.ttf), I understood that to make a font ...
luisfer's user avatar
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1 answer
1k views

Something went wrong while updating

I did a sudo apt update and sudo apt upgrade in Ubuntu 18.04. There was about 60MB to install and it was mostly libmono stuff. In the middle of it installing it just started displaying the same text ...
Apocryphon's user avatar
10 votes
8 answers
12k views

Mono broken after attempt to upgrade, unable to use apt

I have had mono-complete and mono-devel installed on my Ubuntu Server 18.10 for a couple months now to run some applications that depend on it. I am using Mono 5.18.0.225. Prior to things breaking, I ...
Matthew Wright's user avatar
12 votes
4 answers
48k views

How can I compile, run and decompile C# code in Ubuntu terminal?

I have a C# code which I need to compile, execute and decompile using the terminal. How can I do so?
Sonevol's user avatar
  • 696
4 votes
0 answers
368 views

How to make Ubuntu feel more "integrated"?

This screenshot shows different apps being shown very different. I'm showing keepass2, keepassx, keepassxc, with the theme "Yaru-dark". What do I need to do to make they all look "dark"?
StR's user avatar
  • 391
0 votes
2 answers
437 views

18.04 headphone jack no sound after installing remotemouse

So recently I was able to plug in my headphones to my Ubuntu 18.04 laptop, but now I am not getting any sound. I think it may because I did an apt install of "mono-complete", "xdotool" and "...
Eliter's user avatar
  • 69
0 votes
1 answer
325 views

wine needs Mono but does not install it

Just installed the latest wine on 16.04 (all updated+upgraded) and tried to run a windows installer "wine nn4me.exe" and it showed "...needs .NET, but it is better to use ... Mono ..." and an "...
LinuxFerLife's user avatar
1 vote
1 answer
2k views

Mono vs .NET mscorlib.dll | "method not found"

This case involves an application I am designing. This is the thrown exception: Unhandled Exception: System.MissingMethodException: Method >'HashHelpers.IsWellKnownEqualityComparer' not found. I ...
DaFuze's user avatar
  • 19
2 votes
0 answers
1k views

Running a Windows .exe service on Ubuntu (with Mono?) [closed]

I have a service that was coded that I need to move over to linux. Got the code and got it up and running as a .exe on windows to start using installutil. However quite unsure how to get it working ...
Lain's user avatar
  • 121
0 votes
1 answer
5k views

How do I run Minecraft-Console-Client on Ubuntu?

I want to install the GitHub app found here. The problem is that according to the README.txt file in the config folder, I need to run mono MinecraftClient.exe but that command only returns Cannot ...
The Colorman's user avatar
1 vote
0 answers
484 views

c# Connection to server using CLI services and mono, permissions denied

I am developping an application that give a real time diagnosis of my working servers and of the services I am using on these server. First of all I created a C# application on an individual remote ...
Marech's user avatar
  • 11
1 vote
0 answers
3k views

How do I install a specific old version of MonoDevelop on Ubuntu 18.04?

I am trying to install MonoDevelop version 5.4.1.7 so that I can use it with Mono 5.4.1.7. First I tried installing Mono 5.4.1.7 by following the instructions here http://www.mono-project.com/...
Aaron Franke's user avatar
  • 1,126
1 vote
0 answers
704 views

Mono package and problem with making game server running

I have problem with making mono startup with TerrariaServer on my vps. I've installed mono-runtime and all "required" packages like this: $ sudo apt-get install -f mono-runtime Then I made folder ...
Tymoteusz Stępień's user avatar
0 votes
1 answer
320 views

Banshee crash when adding folders to the library

Fresh install of Ubuntu 18.04. Just trying to use Banshee now. But I can't add any folder. Here is the terminal output : [Info 21:57:45.086] Running Banshee 2.6.2: [Ubuntu Artful Aardvark (...
Gizmoatwork's user avatar
1 vote
1 answer
585 views

ERR_SSL_VERSION_INTERFERENCE error when using fiddler with mono on ubuntu

I'm trying to intercept network requests using fiddler on Ubuntu 17.10 and mono 4.6.2. As per instructions given here I've also imported certificates by running command mozroots --import --sync. But ...
Talha Junaid's user avatar
57 votes
5 answers
87k views

Is knowledge of C# of any use in a Linux system?

I know C# and I like to switch between systems and use Linux. Can I use C# to build applications that will natively work on Linux? What should I do to make use of my knowledge of C# in a Linux system? ...
Jacob's user avatar
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1 vote
1 answer
2k views

Mono broken packages [closed]

My verison of Ubuntu is 16.04 When I tried to abort Mono installation I got some problems after this. ( And now I realized that abort is not very good way to stop installation ) I tried to sudo apt-...
Даниил Шрейдер's user avatar
0 votes
1 answer
777 views

Start app if stopped [duplicate]

I made an application with Mono, and I want it is always running. If my application stopped, I need it to automatically start again. Does anyone have solution that would help me? Also, how do I start ...
DjuricS.'s user avatar
0 votes
0 answers
587 views

Sonarr and Mono install [duplicate]

Trying to install sonarr and most guides I find state need to install Mono. But all the guides seem to use the cmd echo “deb http://download.mono-project.com/repo/debian wheezy main” | sudo tee /etc/...
Jeff's user avatar
  • 11
0 votes
1 answer
6k views

How can I launch mono application on startup with root rights?

Recently I wrote the program using Mono. This program needs the root rights and I want it launch on startup. I have Ubuntu 16.04. I already tried use "/etc/rc.local" (followed this link and this) /...
Yahniukov's user avatar
0 votes
0 answers
189 views

focusrite 2i2 mono output

I have bought focusrite 2i2 2nd Generation since I had read ubuntu supports focusrite 2i2 somewhere on the internet. Now I realized it is just driver they support not the software. Since there is not ...
Smile's user avatar
  • 1,099
0 votes
1 answer
2k views

How to stop mono-xsp4 running on terminal?

I'am working with Asp.NET MVC on Ubuntu 16.04. To run my Asp pages I use mono-xsp4 that can be installed running: sudo apt-get install mono-xsp4 Then I run the command xsp4 on the folder I want to ...
Eleandro Duzentos's user avatar
2 votes
1 answer
5k views

How do I install Mono for 17.10?

I would like to install mono-complete so that PlayOnLinux will work properly. http://www.mono-project.com/download/ This post describes how to install MonoDevelop on Ubuntu 17.04: How to install ...
PP725SX4's user avatar
0 votes
0 answers
112 views

Did I installed Wine correctly?

I'll get to this straight --------> I installed Wine, then it asked to install Mono to run properly. I installed Mono and then it said to install .NET Framework to run properly. I said to myself why ...
rainlover's user avatar
  • 576
0 votes
0 answers
4k views

Error when trying to install mono-complete?

I am trying to install mono-complete after realizing that mono-devel was not enough for my needs. The problem is that whenever I try to install mono-complete, I get this error: The following packages ...
Ukula Udan's user avatar
0 votes
0 answers
20k views

mono - "file does not contain a valid cil image"?

I have been using a program on my Windows computer for quite some time, but I am using my Ubuntu pc the most these days. Thus, I would like to be able to run this program (.exe file with associated ....
Ukula Udan's user avatar
0 votes
0 answers
488 views

how to downgrade mono?

i've been trying to modify the repo for it, but all i managed to get was an HTTP 404 Error. can someone tell me how to downgrade mono using repos or from annother way? thanks in advance
Darkmega.EXE's user avatar
0 votes
1 answer
282 views

Monodevelop browser debug

I started learning Asp.Net. As a test, I created my first controller that returns a string "Hello World". Now when I click on debug, I should see this string in my default browser (Firefox). Though ...
Radványi Balázs's user avatar
1 vote
2 answers
4k views

How to open Mono app with GUI in Linux server without X?

Im running a Mono application whose source code I cannot edit. $ mono app.exe Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for System....
BlueMoon93's user avatar
1 vote
2 answers
6k views

Cannot execute programs from MonoDevelop

I clicked on "Run a console project" and it said that the program was built successfully. But after that, I click "Run a console project" again and error like Cannot execute /path/file.exe appears as ...
Hieu Tran Trong's user avatar
20 votes
2 answers
14k views

What are .dlls doing in Linux programs?

Games that were made with Unity3D for Linux contains .dll files in their data folder GameDataFolder/Managed. Which is weird because I thought that Linux uses .so files instead of .dll files. (The ...
xuwenbuwer's user avatar
4 votes
0 answers
1k views

Change default font size for Mono programs?

I have a couple of programs I use occasionally that use Mono (Cross-platform version of MS .NET). The fonts in these programs are always far too small, much like the default in Wine. Unlike Wine ...
Moilleadóir's user avatar
0 votes
1 answer
616 views

Mono-complete 5.0.1.1 installed - but executes 3.2.7

I have a Ubuntu 14.04 system - which seems to have mono 3 installed by default. As I needed to run software which requires a more recent version, I followed the guide here and installed the project ...
Begall's user avatar
  • 1
1 vote
0 answers
4k views

How do I install ca-certificates-mono?

I'm trying to install ca-certificates-mono on linux mint: sudo apt-get install ca-certificates-mono Unfortunately I'm getting this error. I'm trying to follow the instructions here(tried the ubuntu ...
sanginkim's user avatar
3 votes
1 answer
5k views

Alsamixer outputs only in mono (0M or M0) : How to get stereo output?

I have been using Ubuntu 16.04 for sometime now and use Alsamixer to manage my sound settings (every restart sets my headphone to mute (MM) so it's been a ritual to first set that back to unmute (00) ...
NightFury13's user avatar
1 vote
1 answer
3k views

How to specify mono program-options arguments when using supervisord?

We're using the Linux supervisord to manage a service that runs under mono. This is on Ubuntu 14.04.2 LTS with supervisord v3.0b2. I'm trying to figure out how to specify a mono program-options ...
Alan's user avatar
  • 187
10 votes
1 answer
2k views

Change appearance of a MONO application

I would like to theme an application that uses the mono framework. I have tried various GTK2/3 "solutions" but these haven't changed anything. just two examples I've tried: env GTK_THEME="...
Madivad's user avatar
  • 687
0 votes
1 answer
310 views

How to make a script that launches bash command but don't open it?

So I built this code: #!/bin/bash sudo -u matas cd /home/matas/Desktop/Release mono launch.exe How I can make this to launch 'mono launch.exe' but not open bash? I know It is possible.
user avatar
0 votes
1 answer
1k views

How I can run .exe file with monodevelop, without running it through compiler? [duplicate]

So I have monodevelop. I can run .exe file (in my case PC steam guard authenticator) How I can run it without going to program itself? Can I somehow 'emulate' it? I just want to get rid of that '...
As Matas's user avatar
0 votes
1 answer
467 views

How can i fix this? [duplicate]

ryan@Ryans-Gaming-Pc:~$ sudo apt-get update [sudo] password for ryan: N: Ignoring file 'mono-xamarin.listclear' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension E: Type ...
Cave Johnson's user avatar
0 votes
0 answers
28 views

Removing a manually installed package and now reporting not installed but won't install [duplicate]

I manually compiled mono from the /tmp directory (4.9.1) and found that it was too unstable for me, so wanted to revert back to the install from the repos. I foolishly did a reboot before doing this, ...
user3791372's user avatar

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