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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7
votes
1answer
211 views

Can SDL work on Ubuntu Touch?

Recently, I've see the Ubuntu Touch video here http://www.youtube.com/watch?feature=player_embedded&v=cpWHJDLsqTU I want to try to port my own game (using SDL and OGRE) from PC to Ubuntu Tablets. ...
1
vote
2answers
237 views

I am getting an error while writing my first app as shown in developer get-started tutorial

I am trying to learn to develop apps in ubuntu and currently i am going through this tutorial. As shown in the video I am writing the below given codes: self.refreshbutton = ...
3
votes
1answer
43 views

What does Version mean in the .desktop file?

While submitting an application to the Ubuntu Touch store, I got the following error message. "desktop_Version (Cliffhanger)": { "text": "'0.3' does not match freedesktop.org version '1.0'" } ...
3
votes
1answer
327 views

Buttons in ubuntu touch toolbar

What is the code to have a toolbar with buttons when programing in QML with the Ubuntu Components Module. I want to make it so that when I swipe a finger from the bottom of the screen the toolbar ...
1
vote
1answer
46 views

Ubuntu phone development, where to start? [closed]

I'm a long time Ubuntu desktop user, but new to the development world. I'd like to start getting myself familiar with Ubuntu Touch and learn how to develop apps for it, however I'm a little bit lost ...
1
vote
2answers
80 views

Why OpenDialog.py don't work on Jotty application

I'm a Python beginner, I installed quickly, I wrote a "quickly tutorial" in terminal and I did all the steps before at: "However, the application is not complete. There are a few things left for you ...
5
votes
2answers
631 views

How do I package my application for the Ubuntu Software Centre?

I'm an old hand at software development, but not so experienced with packaging. I've built one dpkg before, but it wasn't a source package. I'm working on getting an application submitted to the ...
0
votes
0answers
231 views

titanium studio in ubuntu 12.04 LTS

how to install titanium studio in ubuntu. step by step the latest one. plss help. im getting an error JVM terminated. Exit code=13 /usr/bin/java -Xms128m -Xmx1024m -XX:MaxPermSize=256m ...
1
vote
1answer
206 views

fakeroot and package building

We have developed a network pub/sub communication suite. It is in use across a number of different applications and domains, most notably on our payloads aboard the International Space Station (ISS). ...
0
votes
1answer
52 views

I get the following errors when I try to install the Ubuntu SDK (ubuntu app development kit)

I use Ubuntu 12.04. I followed the steps given here . 1)When I try to execute the first step " sudo add-apt-repository ppa:ubuntu-sdk-team/ppa && sudo apt-get update && sudo apt-get ...
2
votes
1answer
35 views

What does lint_package_filename_version_match mean?

In a review of a .click package of my app, a message contained the following: lint_package_filename_version_match How can I fix it?
2
votes
1answer
44 views

What does desktop_Exec mean?

In a review for my click package, the message contained this bit: desktop_Exec What do I bear in mind to fix it?
2
votes
1answer
26 views

What does desktop_validates mean?

In a review for my click package, I saw a message containing: desktop_validates What does it mean and how do I fix it?
5
votes
1answer
68 views

What does functional_qml_applicationName_matches_manifest mean?

I submitted an application to the click store but it comes back with this error:- functional_qml_applicationName_matches_manifest What does this mean and how do I fix it?
1
vote
1answer
15 views

What does lint_control_click_version_up_to_date mean?

I submitted an app to the store and it gets rejected with this message:- lint_control_click_version_up_to_date How do I fix this?
1
vote
1answer
34 views

What does lint_package_filename_pkgname_match mean?

I've submitted an app to the click store, but it comes back with this message:- lint_package_filename_pkgname_match How do I fix that?
0
votes
1answer
13 views

What does desktop_Comment_boilerplate mean?

I'm uploading a click package and it's being sent back with the following message: desktop_Comment_boilerplate What does it mean and how do I fix it?
1
vote
1answer
224 views

Qt Creator cannot run HTML5 apps on Ubuntu 13.10, is it broken?

When attempting the Ubuntu HTML5 tutorial on the Ubuntu site, I have just created the template app and am attempting to run it. When I run it, I get this error: Starting ubuntu-html5-app-launcher ...
4
votes
1answer
100 views

What does lint_maintainer_format mean?

In a review for my click package, I saw the following message: lint_maintainer_format What does it mean and how do I fix it?
0
votes
0answers
78 views

Ubuntu touch kernel and android device drivers?

Since the kernel is open source but the android device drivers are not, is there not a way to use existing android drives and compile a new kernel with those drivers like GPS, Bluetooth, Wifi, etc...? ...
10
votes
5answers
3k views

How do I make my java app compatible with the unity global menu?

I like to develop in Java but also want compatibility with the global menu? Is there a way? Please help.
1
vote
1answer
178 views

Ubuntu SDK installation error on Ubuntu 13.10

I followed the instructions from http://developer.ubuntu.com/apps/create/get-the-sdk/. But the installation failed with the following message at the end: The following packages have unmet ...
1
vote
1answer
107 views

Can't install the Ubuntu SDK due to broken qtcreator-plugin-ubuntu dependency [duplicate]

I tried to install the Ubuntu SDK on my Ubuntu 13.10 Virtual machine(VMwarePlayer) by typing sudo add-apt-repository ppa:ubuntu-sdk-team/ppa && sudo apt-get update && sudo apt-get ...
1
vote
0answers
45 views

Recommended way to check/fire alarm in Python (PyGI/PyGTK)

I am learning to develop an application by using Quickly (quickly create ubuntu-application). This application will stay in Application Indicator / Notification Bar and only work when a defined ...
0
votes
0answers
136 views

installing ubuntu sdk error

I was trying to install ubuntu SDK. at first I tried: sudo add-apt-repository ppa:ubuntu-sdk-team/ppa sudo apt-get update sudo apt-get dist-upgrade sudo apt-get install ubuntu-sdk and it says: The ...
0
votes
1answer
20 views

Quickly is Not Packaging My Application?

I Can't Package my Quickly Command Line Application , The Following is The Error Output quickly package --verbose shows the following output /host/cryptonite$ quickly package --verbose running ...
61
votes
7answers
34k views

What is the best way to develop apps for Ubuntu? [closed]

I want to write applications for Ubuntu. I do not know much about programming but I want develop for Ubuntu. I am trying to learn Python right now. What do you think is the best way to develop apps ...
62
votes
6answers
25k views

What is the best place to install user apps?

Occasionally I am installing application with something other than apt-get or the Package Manager. What is the "best practice" location for installing user apps? (/usr/bin/, /usr/local/bin/, /opt/, ...
2
votes
2answers
310 views

How can HTML5 Ubuntu Touch apps access camera and microphone?

I am creating an app for Ubuntu Touch using HTML5. I am opening my HTML page using QtWebKit's WebView and I really need to let the app take pictures and record audio, however, I can't access the ...
1
vote
1answer
156 views

How do I add Webkit webview to the Ubuntu SDK?

I'm trying to do this tutorial for learning and it seems that I have to keep adding things for it to go smoothly. http://developer.ubuntu.com/apps/html-5/tutorial/ I don't have the "rss-sample.qml" ...
11
votes
4answers
4k views

Why Ubuntu.Components 0.1 missing from QTCreator?

First of all i need to create a "hello world" app using QML & QT Creator as described here http://developer.ubuntu.com/get-started/gomobile/ Second, when i was trying to install QML platform and ...
0
votes
2answers
147 views

Are there any tutorials available which would help me learn the concepts of Mobile Development? [closed]

Right now I am working on Asp & C#.net. I am also interested in Mobile App Development and want to start with Ubuntu Mobile development using C#.Net. Are there any tutorials available which would ...
0
votes
1answer
104 views

Changes to the KDE library prevent compiz 0.9.7.12 from compiling

I have been been following a tutorial on modifying existing compiz plugins, but run into the following error when compiling compiz-0.9.7.12: In file included from ...
6
votes
1answer
115 views

Can an app in `/opt/extras` install themeable icons in `/usr/share`?

My application Variety Wallpaper Changer runs from /opt/extras and uses an indicator icon. I would like to make this indicator icon theme-specific. As far as I understand the standard way is to ...
3
votes
2answers
405 views

Debugging HTML5 With Ubuntu SDK

I read this Question: Can I develop a hybrid native/HTML5 app for the Ubuntu Phone? And it has a great answer, but that is no longer supported in the Ubuntu SDK (Ubuntu 13.04), now it uses: import ...
-1
votes
1answer
179 views

Ubuntu terminal commands and usage [closed]

I just got Ubuntu 12.04 yesterday and would like to learn how to use the terminal. The reason why is because I'm a developer and I'm trying to get any applications I develop supported on linux. From ...
8
votes
2answers
424 views

How to set up Launchpad to import from GitHub?

I'm setting up my first Launchpad project. In this case I would like to import from the Master branch from my GitHub project - the default branch is not Master - it is a release branch currently ...
10
votes
7answers
9k views
0
votes
0answers
60 views

Cannot install Ubuntu SDK [duplicate]

I get the following error in terminal while installing the SDK W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn't be verified because the public key is not ...
0
votes
1answer
43 views

Weight of the commentaries in the source code [closed]

When I search for source-code of Linux parts (applications, kernels, ...), I often find commentaries to clarify the code. Now, I know that those commentaries are useful to help a human reading the ...
0
votes
0answers
55 views

How to use ANT+ radio in Ubuntu Touch?

As the Google Nexus devices tend to all have ANT+ radios in them now, and Ubuntu Touch currently targets these devices primarily, is there a way to access the ANT+ radio and connect and communicate ...
1
vote
0answers
128 views

Specifying Python Distribution in Ubuntu 13.10 (for Continuum Anaconda Python)

I've been trying to install Python on my Ubuntu 13.10 VM. Ubuntu already comes with Python, and when I remove it with apt a lot of other apps get removed. I have installed Continuum's Anaconda ...
1
vote
1answer
178 views

Multi-threading in Gtk python [closed]

I'm trying to display a GUI and do some work in the background.when the window is current window, GUI runs normally. Long after minimizing the window, GUI will freeze. The following code is created ...
3
votes
2answers
757 views

Why is Python V3.3 installed by default on Xubuntu 13.10?

I am running Xubuntu 13.10, 64 bit. python --version outputs Python 2.7.5+ which is normal since python 2.7 is installed by default on all Linux distros. But when I go to Software center -> and ...
2
votes
0answers
24 views

Touch SDK Expansion

In the Ubuntu Touch SDK description http://design.ubuntu.com/apps/building-blocks/expansion there is an UI element which is mentioned, namely the Expansion. From the description I don't really ...
2
votes
3answers
116 views

I have ideas for apps for Ubuntu.

How do I submit ideas for apps? I am not a programmer
1
vote
2answers
128 views

How would I make a simple indicator program to record timestamps?

I would like to make a button to sit up next to my sound/wireless/etc indicators which, when toggled, will change color and write the system time with the word "begin" to a file, then, when toggled ...
8
votes
4answers
2k views

How to create a scope?

I'd like to create a custom scope that searches and returns results from an online source for personal use. Is this possible? And if so, how?
2
votes
1answer
2k views

Compiling code that depends on QT4 with QT5 installed

I have QT5 installed on 12.10 I believe because it is a dependency for the Ubuntu SDK and the Ubuntu touch tools which I have been using. I have QT4 installed as well, infact I had it installed ...
0
votes
1answer
86 views

install ubuntu sdk error

I have this error: W: Failed to fetch cdrom://Ubuntu 12.04.3 LTS _Precise Pangolin_ - Release amd64 (20130820.1)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM ...