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Questions tagged [application-development]

Writing applications for Ubuntu (including Ubuntu Touch) and questions about the application submission process to the Ubuntu Software Center. This covers both open source and commercial applications.

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Use application data from remote server

This is only an experimental work. I have built a windows qt wallet for an altcoin. Hosted server with entire blockchain data (blk.dat) synced. The blockchain data file(blk.dat) is around 40GB in ...
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4answers
223 views

Lubuntu vs. Xubuntu for development [closed]

I've recently started to lose interest on having my work environment as Windows 10 for development in general. The continuous updates and programs which Windows somehow starts without my order is ...
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23 views

how to create $application.dektop file in /usr/share/applications? [duplicate]

I have install gle-graphics in ubuntu16.04, which is one graphics scripting language (GLE homepage). I can compile/build *.gle file with qgle. Now I got a problem. If I want to open a *.gle file ...
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0answers
34 views

Increase Popup time for Skype

Can we increase the Popup time for Skype in Ubuntu 18.04 LTS? Thanks in advance.
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0answers
13 views

Installing development system for local hosted applications

I want to develop an application that will run on the development system (local hosted). I downloaded the SDK for the voice card I am using, but need a development system. The SDK installer says gcc ...
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0answers
11 views

Ubuntu 14.04 slow on my laptop - what is quickest way to get Pebble SDK working?

I have installed Ubuntu 14.04 in VirtualBox on my old laptop (HP Pavilion dv6-6110us). It has a 500Gb SSD drive inside. But the response time for Ubuntu is very slow. i.e. Click - nothing happens, ...
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1answer
43 views

How do i build a program with QTCreator, .pro file?

im sort of new to Linux and i'd like some advice on how to build CalcProgrammer on Ubuntu 16.04 LTS. (https://github.com/CalcProgrammer1/KeyboardVisualizer) It is an LED keyboard audio visualizer ...
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0answers
188 views

Can I develop “iOS Application” in Ubuntu without use Virtual System?

I'm new in Ubuntu I like it. This is my first question in this community. So I'm developer Android Application and programmer java in this time I'm learning IOS programming but I don't have mac OS ...
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0answers
65 views

Running entity framework on ubuntu 18.04 in Rider IDE

I'm currently working on some ASP.NET app. Everything works fine until i want to use entity framework. I've installed entity framework package via NuGet package manager but i couldn't enable ...
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0answers
73 views

How to install Quickly in Ubuntu? [duplicate]

Unable to find in software center tried using command line also: sudo apt-get install quickly-ubuntu-template
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0answers
50 views

Ubuntu kept old partitions after reinstallation. How can I reallocate the space?

I am new to Ubuntu and after failing to resolve some package management problems, I'm trying to reinstall it. I'm using Windows 7 and Ubuntu 16.04 (dual boot). Now after the attempted reinstallation ...
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4answers
12k 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? ...
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0answers
2k views

Android SDK Build-Tools and SDK components were not installed

I was installing Android Studio on my Ubuntu 16.04.4 LTS. I successfully downloaded it and I can run with ./studio.sh from /opt/android-studio/bin. After executing this command, it starts downloading ...
2
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1answer
51 views

What's up with Ubuntu Desktop API docs? Why are all the AppIndicator links dead?

I was going to make a quick tray monitoring script. Y'know, the classic CPU/mem/net usage example; I need a similar thing, but with my own code. 15 minutes later, trying to find any doc whatsoever ...
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1answer
27 views

how to create a hot-key to control a volume app

I was wonder if there is a way to create a hot-key to control PulseAudio app? Due to YouTube being in full screen and adjusting down the volume.
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0answers
38 views

Charting in Qt on Linux

I want to get into porting Windows apps to Linux but have a few questions about Qt as a possible solution. I have seen Qt touted as an equivalent for VC++ on Linux. VC++ on Windows has no charting ...
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2answers
38 views

What is the difference between copying an a.out file(executable file) and installing an application? [closed]

What is the difference between installing an application software and copying the executable file(ex:a.out) of the application? When we run the a.out file it gives some result, running the application ...
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0answers
19 views

sound devices 'cross fader application'

Does anyone know of an application that automatically cross fades between audio applications? e.g. i am playing an audio file on vlc and i click on a youtube video and the app crossfades between the ...
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1answer
58 views

Are all Ubuntu apps the same on every device

Bit of a newbie question Are all Ubuntu apps the same regardless of the device for instance if I made an app for Ubuntu on a jetson tx2 developer kit would the code be same as a Ubuntu app ran on a ...
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0answers
18 views

Beginner: how to start with contributing for ubuntu [duplicate]

Can I take part in some project for ubuntu? What should i do? I am new, and i would love to complete or take part or start a project for it. Thx
4
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1answer
71 views

What is the reason behind apt-get's W: Duplicate sources.list entry?

This question is really about the why of the error message. It would seem that duplicate entries in configuration file such as sources.list would be fairly simple to correct automatically and can be ...
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0answers
34 views

Ubutu 17.10 Graphics Environment [duplicate]

I just installed 17.10, and I can't launch some App's such as PhpStorm and RubyMine, it is saying "java.awt.AWTError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY ...
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1answer
277 views

browse to remote Glassfish admin page?

On AWS it's easy enough to start glassfish: ubuntu:~$ ubuntu:~$ asadmin start-domain Waiting for domain1 to start ..... Successfully started the domain : domain1 domain Location: /home/ubuntu/...
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0answers
198 views

Why do i need to unplug and plug in usb device to keep it working with USB port v2.0

enter image description hereMy usb device doesn't work properly with usb port 2.0 in linux ubuntu 14.04. Every time i have to unplug and plug in back to the port again in order to work it properly. I ...
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0answers
362 views

how to ensure rvm ruby and not system ruby is used?

After install ruby with rvm: thufir@dur:~$ thufir@dur:~$ rvm use 2.4.2 Required ruby-2.4.2 is not installed. To install do: 'rvm install "ruby-2.4.2"' thufir@dur:~$ thufir@dur:~$ rvm install ruby-2....
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2answers
214 views

output “script” to pastebin readability

How do I paste output from the script command (typescript; "man script") so that it's more readable? Script started on 2017-10-27 06:20:56-0700 ]0;thufir@dur: ~/IdeaProjects[01;32mthufir@dur[00m:[01;...
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vote
1answer
2k views

how to install android studio with umake and snap? ubuntu-make.umake usage

How do install android-studio from umake through snap? It seems to be a matter of umake usage...but the command looks correct. thufir@dur:~$ thufir@dur:~$ snap install ubuntu-make error: This ...
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votes
1answer
432 views

PPA does not have a release date: apt update failed for some reason [duplicate]

Trying to remove a ppa which I shouldn't have installed: thufir@dur:~$ thufir@dur:~$ ll /etc/apt/sources.list.d/ total 28 drwxr-xr-x 2 root root 4096 Oct 26 05:57 ./ drwxr-xr-x 6 root root 4096 Oct ...
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0answers
316 views

ERROR: The checksum of android-studio-ide doesn't match. Corrupted download? Aborting

More than three times: thufir@dur:~$ thufir@dur:~$ cat android Script started on 2017-10-26 05:49:38-0700 thufir@dur:~$ thufir@dur:~$ umake -v android android-studio --accept-license INFO: Logging ...
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0answers
15 views

how to start glassfish when installed from apt (glassfish-javaee)? [duplicate]

Where is asadmin to run from the CLI? thufir@dur:~$ thufir@dur:~$ ll /usr/share/java/ | grep glass lrwxrwxrwx 1 root root 40 Sep 26 2016 glassfish-appserv-jstl.jar -> ../maven-repo/jstl/...
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1answer
2k views

How to run Glassfish on Java 9? [closed]

As I recall, it's just a matter of invoking asadmin to enter the asadmin shell: thufir@dur:~$ thufir@dur:~$ glassfish-5.0/glassfish5/bin/asadmin Exception in thread "main" java.lang....
4
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0answers
366 views

Add an application to notification tray in GNOME

I am developing a Linux application and I want an icon for the application to show up in the notification tray which is at bottom-left in GNOME. Image of notification tray in GNOME: How can I ...
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0answers
49 views

Tool for planning software development

does anyone know a tool to plan software. Pen and paper are fine for planning small programms, but I'm looking for a tool to organize my scripts (in my mind) when a paper is no longer big enough. I'm ...
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0answers
23 views

How does Settings control in ubuntu alter the settings in real time?

I have noticed that in Ubuntu, unlike windows, there is no "apply settings" button. I am wondering how is it possible to alter settings in real time. I mean there is some variable in some file getting ...
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1answer
182 views

g++ uses OpenGL 3.0 but I have 4.5

In the c++ code I put the line fprintf(stdout, "%s\n", glGetString(GL_VERSION)); and it outputs 3.0 Mesa 17.3.0-devel although $ glxinfo | grep "version" server glx version string: 1.4 client glx ...
3
votes
1answer
276 views

Can I develop web and desktop apps on Ubuntu using C#?

I am new to Ubuntu (using 14.04) and Linux in general. Professionally I work on HTML,PHP, CSS, C# and C. I know I can use HTML, PHP, CSS and C but I am not sure about C#. In Windows there is Visual ...
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0answers
41 views

How to update forked apps from custom github repository

I want to make changes to some apps (say nautilus) after forking it on github. After making those changes, how do I implement them on only my version of Ubuntu? How do I get the app updated from my ...
1
vote
1answer
45 views

Fail to add my own repository

I try to upload to my PPA and add it but I get this error $ sudo add-apt-repository ppa:unixinfo/openshell The OpenShell (opsh) command-line interface More info: https://launchpad.net/~unixinfo/+...
0
votes
1answer
481 views

How to run Android studio on ubuntu 17.04?

I'm trying to run Android studio on my laptop I have download android studio from here and I have downloaded the SDK tool package separately I tried to run android studio from the .sh file and when I ...
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2answers
75 views

How can I build ubuntu desktop softwares? [closed]

Or what programing language should I use to develop ubuntu desktop applications?
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0answers
400 views

Qt error trying to install quiteinsane gimp plugin

I am trying to install the quiteinsane gimp plugin on Ubuntu 16.04. https://sourceforge.net/projects/quiteinsane/ I am getting this error: checking for Qt... configure: error: Qt (>= Qt 2.2.2) (...
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0answers
25 views

ubuntu kernel and INT 13H interrupt

I'm new of this Ubuntu mailing list. My question is addressed to the kernel ubuntu developers. I use ubuntu and the grub 2 boot loader. The question is: I'd like to know if the Ubuntu kernel uses ...
1
vote
2answers
198 views

How to program a one click indicator (add middle click functionality)?

I'm fairly fluent with creating Application indicators with menus. On the example below there is one menu item (quit). I wouldn't have any problems adding another item, my actual application, or ...
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0answers
100 views

Ubuntu custom ISO for unattended installation using cubic [duplicate]

So, I have just discovered cubic, to create custom ISOs and I was wondering what other capabilities does the software have. Is there a way for example, to create an unattended custom iso using cubic? ...
3
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0answers
66 views

How to create Ubuntu Applications

What should I use to create apps for the Ubuntu Software center? I have Ubuntu 16.04 and qtCreator keeps crashing for me (even 4.3.0). I can't find a good place to start for creating apps for the ...
3
votes
1answer
11k views

Open port on ubuntu 16.04

I cannot access my db remotely, The only thing i found out is the port 3306 is open for 127.0.0.1, I want it open globally. The error i receives on accessing db is No connection could be made because ...
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0answers
145 views

When using Snappy, Raspberry Pi 3 WiFi hangs

I've been attempting to use the Snappy Core 16 image with a Raspberry Pi 3. The system boots, is able to scan WiFi but hangs at 66% when I attempt to associate (this is true even when it remembers ...
0
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1answer
176 views

How to sell software that is uploaded via snap

In the FAQ it says that one is able to sell commercial software in the Ubuntu Software Center. I have already uploaded my software via snap and I wonder where I may enter a price.
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1answer
324 views

Making simple graphical programs without an X Server (alternatives to svgalib)

Is it possible to create simple graphical programs in C without an X Server. I'm talking about svgalib or libsvga. Is there another alternative library? But I can't get it on 16.04 LTS. I do wish to ...
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votes
1answer
138 views

Implication of ending Unity [closed]

Ubuntu 18.x will carry Gnome Window mgr instead of Unity window mgr. What is the implication in application development?