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• Problems in creating click package for native application

  - by Swordfish90

  Hello everyone I've tried may times to package a native click application mainly following this tutorial: http://notyetthere.org/?p=316 The procedure works and I'm able to execute the binaries both on phones and desktops. The problems start when I install the click package. The application is launched but the game is not working (the "gamefield" is not loaded). The only error message that is given is that versions of localstorages are not compatible (that is impossbile, because it never changed). I suspect that the problem is related to apparmor but I have no proof of that. The source code of the application is available here: https://launchpad.net/ubuntu-netwalk Thank you in advance to everyone...

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• How To Troubleshoot Internet Connection Problems

  - by Chris Hoffman

  Internet connection problems can be frustrating. Rather than mashing F5 and desperately trying to reload your favorite website when you experience a problem, here are some ways you can troubleshoot the problem and identify the cause. Ensure you check the physical connections before getting too involved with troubleshooting. Someone could have accidentally kicked the router or modem’s power cable or pulled an Ethernet cable out of a socket, causing the problem. Image Credit: photosteve101 on Flickr 7 Ways To Free Up Hard Disk Space On Windows HTG Explains: How System Restore Works in Windows HTG Explains: How Antivirus Software Works

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• Copy and Paste problems in Visual Studio 2010

  tweetmeme_source = 'alpascual';After installing Visual Studio 2010 I started having problems with Copy and Paste. Trying to find out how many users are being affected by this bug. The use case to reproduce the bug, just using VS2010 for a few minutes and eventually doing Control C and Control V to copy lines of code does not work. Using the menu to do the copy and paste also wont work. Looks like a problem in the clipboard itself IMHO. The set up of my computer. Windows 7 Professional with 4...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• I can't click on some things and other problems

  - by Ruben

  I have some issues with my Ubuntu 12.04 . When I open Ubuntu Software Center, the program opens and than just disappears just when it is opened. My Ubuntu 12.04 won't install any updates because of this error in the picture. Worst of all: I can't click on anything except for programs that from Ubuntu: for example I can't browse the internet via Firefox or Chromium... I can't click on folders. I can't click on things in my Thunderbird mail program. But I can click on Update manager for example... It is just clicking that doesn't work, when I try 'clicking' something with using the tab-button and enter I can click on something - in every case. But that's just too annoying to do. Oh sorry guys I had some screenshots that illustrate the problems, but I can't get them off the 'problem pc ubuntu 12.04' about which I am talking... it's so sad

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• Unable to correct problems, you have held broken packages

  - by trond

  After upgrading from 10.04 to 12.04 I am trying to install different packages. For instance ia32-libs and skype (4.0). When trying to install these, I am getting the 'Unable to correct problems, you have held broken packages' error message. Output of commands: sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. After running this: sudo dpkg --configure -a foo@foo:~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

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• Flowchart for solving programming problems

  - by nurne

  I noticed that every developer implements a somewhat different flowchart for solving programming problems. By flowchart I mean a defined system of techniques that the developer goes through in a certain sequence, trying to solve the problem at hand. Some examples for techniques: Google "how to..." or "... tutorial". Search the java/msdn/apple/etc API doc for the specific class or method. Search in stack overflow the exact problem with some tags like [iphone]/[java] etc. Take a nap and let the subconscious work. Debug. Draw the algorithm or system. Google the logged error message. Ask a colleague or manager. Ask a new question in stack overflow. From your experience, what is the best flowchart for solving a programming problem?

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• Update problems due to "installation of packages from not authenticated sources" error

  - by Denis Hoss

  I have some problems updating my Ubuntu Requires installation of untrusted packages The action would require the installation of packages from not authenticated sources. cinnamon gir1.2-muffin-3.0 libgnome-keyring-common libgnome-keyring0 libmuffin0 muffin-common The downloads are from the Main server, the Source code under Ubuntu Software tab is marked Is there something I have missed? The output of sudo apt-get update is: W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6A9653F936FD5529 W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A777609328949509 W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ oneiric/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_oneiric_partner_binary-i386_Packages)

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• Problems about responsiveness and keyboard/mousepad not working

  - by ChrisTheNoob

  So I installed Ubuntu 12.04, I'm very new at this and want to get into the world of Linux but have run into nothing but problems. I have an Acer Aspire 5553g. First off, my keyboard won't work. Second, my computer has more than enough of everything to run Ubuntu smoothly, but everything runs extremely slow. (You move the mouse and it gets there a few seconds later) It's to the point where I can't even use it and I really want to. I'm tired of Microsoft stuff and I've been looking at learning how to use Linux based operating systems for a while. Please send me some help to fix these issues and maybe some tips to help get me started. Thanks in advance chris

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• Problems while upgrading from 11.10 to 12.04

  - by Jignesh

  I was upgrading from ubuntu 11.10 to ubuntu 12.04 using the alternate cd method. Everything went fine upto installing upgrades, but during the cleanup phase , it asked me to remove obselete packages or not, and to close all open applications. I used Alt+Tab to view open applications, and then it just hanged, I could only move mouse ,entire screen got blank, and I was forced to restart , leaving the upgrade in middle. After restarting my ubuntu 12.04 is working fine , I think ubuntu got upgraded as only cleanup and restarting phases were remaining when I restarted, can there be problems with this ubuntu, or is this fine ?

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• More problems in one

  - by Susie

  Yesterday I installed Ubuntu 12.04 because of some previous problems. I had to recover files through Photorec. But it filled my whole disk overnight and didn't even finish. When I turn on my notebook, there's an error The system is runnning in low-graphics mode (don't know if it's somehow connected with it). I need to delete those recup_dir folders, but also I need to finish recovering and get through the error. So I'm absolutely desperate. I hope that I writed it ok. Thanks in advance.

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• Installed 12.04 from CD problems with compiz-core - wont continue - just

  - by user70886

  Installed 12.04 from CD to clean hard drive but on first boot up says problems with compiz-core. Clicked continue with it not installed. After I sent info for help; it came back with some packages are not up to date. Said I need to update compiz-core and libylib2.0-0 Cancelled the process to send info (after second time) but it wont cancel and it wont load the desktop. What do I do now? Right click will let me create a new folder/document or organise desktop by name etc but I cannot see the usual system bar or left menu items. Is there a way to load the terminal and reload the desktop. If this was windows I'd use cntrl alt delete and run explorer to fix the desktop.

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• Distorted graphics, problems with starting up

  - by GreenEggsAndHam64

  Using the newest version of Ubuntu, freshly installed. NVIDIA GeForce GTX 560 Ti. It's mostly the font that doesn't render well, I think. Small logos do it too, sometimes. Screenshot to clarify (see bookmarks, search bar, etc.). EDIT: Another screenshot. And, sometimes when I start up, I get only a black screen saying [OK]. I can move my mouse around, but nothing helps, except for restarting. Also, my desktop picture doesn't stay the same. Every time I start up Ubuntu it goes back to the standard purple background. They're not very serious problems, but it's all a little annoying. Thanks in advance for your help.

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• Two problems, both with either lock or suspend.

  - by user199208

  I recently did two things that may be the cause of either of them. 1) I started using a second screen 2) I installed xscreensaver instead of the stock, power saving option. My first question is about suspend: every time I wake from suspend, networking is disabled. While I've seen multiple posts about that on here, it didn't start happening until recently. Second, lock seems to be disabled now. Are both of these problems a bug, or was this caused by the second screen or maybe xscreensaver?

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• PCManFM problems: shuts down unexpectedly, would not always start [closed]

  - by cipricus

  In Lubuntu 12.04 beta (final release in a few days). I do not remember doing something outrageous to my PCManFM but now it has has a lot of problems: "extract here" menu action wouldn't work (this problem never disappears) the program shuts without obvious reason making the desktop empty (the program can be started in run (alt-f2) but this does not alway restore the desktop) would not start sometimes from its /usr/share/applications.desktop file (or the "Aplication Launch Bar") although it starts in run (alt-f2) (the last problem is temporarily solved if the program is closed in task manager and than restarted with alt-f2) I have reinstalled it to no avail. Any ideas?

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• Getting Started with 12.04 LTS Problems

  - by mark

  Okay previously I used ubuntu 10.04 in Desktops and Loved it! I bought a newer Toshiba Satellite with an i7 CPU, 8GB Ram, 1TB HD, first thing I tried to do was install Ubuntu 9 on it then I found out it was no longer Supported. (I gave my 10.04 disk away) So I tried installing Windows 7 and experienced SO MANY problems, I am going back to try 12.04. Starting all over again. After installing 12.04 Wireless was Detected yet said it was Disabled by a Hardware Switch. Went read through the Message Boards found Solution which was Sudo rf Kill All. Okay all excited I would finally get my Ubuntu to finally work I rushed back to my laptop from the internet cafe, and went looking for the TERMINAL input on my Ubuntu 12.04, and I cannot find the Terminal. If I can't find the TERMINAL how Can I enter any Sudo Stuff? So I guess the first question is Where is the Terminal Located in 12.04? Thank you.

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• Facing unity problems after upgrading to Ubuntu 12.04

  - by sh2515

  I upgraded to 12.04 and had problems with unity. So this is what I did 1) Ctrl + Alt + F1 sudo apt-get install compizconfig-settings-manager Export DISPLAY=:0 ccsm 2) Ctrl + Alt + F7 3) Enabled unityplugin 4) Ctrl + Alt + F1 unity --replace it worked with a couple of error messages now I have to put in start up application export DISPLAY=:0 unity --replace NVIDIA software recognises my monitor but ubuntu sees it as laptop. something isn't right can someone point out what info I need to put here for people to help. I have been upgrading this from 8 ish so have altered lots especially when compiz fusion first came out. Also if I run recovery session and type 'unity --replace' it starts and runs fine.

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• Logitech C310 webcam problems

  - by haggai_e

  I've just installed a Logitech C310 webcam on my Ubuntu Oneiric machine, and I've got several problems. When I use cheese, if I set it to use the higher resolutions, the picture contain shadows and has distorted colors. Only with lower resolutions the picture looks okay. The above photos were taken with cheese. In addition, the camera's internal microphone didn't always work. When using it through pulseaudio, the sounds were fast and with high pitch. When using it directly through alsa it sounded fine. Any ideas?

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• Problems while installing Ubuntu 12.04 64 & 32 bits from LiveCd

  - by user76104

  I am trying to install Ubuntu on my new pc but I am encountering problems. When I boot from the installation CD, everything runs fine until the "window" when the user has to decide to Try Ubuntu or Install it in the machine. Well that "window" appears in blank, and my mouse and keyboard behaves really slow. I can't do anything , so i have to shut it down by pressing power button. The specification of my pc are this Motherboard: Gigabyte ex58 ud7 CPU: i7 950 HD: Western digital caviar black Int. memory: 6gb memory corsair Graphics: evga gtx580 I really need to install Ubuntu or another Linux distribution, i am using de seismic Unix program {Edit : Guess it is this} on my laptop. I hope someone can help me.

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• Problems with input and suspend(separately)

  - by VaultPrisoner

  I'm still very new at Ubuntu/any other linux OS, so this might be an easy fix for most. I installed Ubuntu 14.04 a few days ago, it's dual-booted with Windows 8.1 and I'm using a Toshiba laptop. Whenever I suspend/close my computer, and then open it again, the front LEDs will light up telling me that it's running, but the screen will not do anything. I can hear the fan spinning, but it's almost like the screen doesn't power on like it should. Also, another problem I'm having, is that ~60% of the time, my trackpad and keyboard do not work at all, this starts as soon as Ubuntu boots up. To fix it, I just turn it off and back on until it works. My USB mouse does work no matter what though. Both problems are only present in Ubuntu and not windows 8.1.

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• Screen rendering problems after upgrading to 12.10

  - by vjrj

  Since upgrading to Ubuntu 12.10 I'm suffering severe rendering issues in unity: Some parts of any application (for instance Firefox, or emacs, etc) are blank, or are not rendered, or are blinking. Some fonts in an application are not correct rendered, maybe only some part (see Eclipse screenshot). There is some shadows in desktop background. It's something that occurs from time to time (it's works great for hours and suddenly start to give this rendering problems). I was trying to find a bug in launchpad but without success. My card (using i915 module): 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0042] (rev 02) I've tried to reset compiz/unity or gnome but does not help. Any tip? Update: A Firefox screenshot of how my profile in Ask Ubuntu looks like now

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• What should programmers practice every day?

  - by Jacinda S

  Musicians practice scales, arpeggios, etc. every day before they begin playing "real" music. The top sports players spend time every day practicing fundamentals like dribbling before playing the "real" game. Are there fundamentals that programmers should practice every day before writing "real" code?

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• Spring MVC Best Practice Handling Unrecoverable Exceptions In Controller

  - by jboyd

  When you have a controller that does logic with services and DAO's that may throw an unrecoverable exception, what is the best practice in dealing with those method calls? Currently an app I'm working on has very lengthy try catch methods that simply err.out exception messages, this doesn't seem very robust and I think that this code smells, is there any cookie cutter best practice for handling this in spring-mvc?

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• VB Classes Best Practice - give all properties values?

  - by Becky Franklin

  Sorry if this is a bit random, but is it good practice to give all fields of a class a value when the class is instanciated? I'm just wondering if its better practice to have a constuctor that takes no parameters and gives all the fields default values, or whether fields that have values should be assigned and others left alone until required? I hope that makes sense, Becky

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• Is using the break statement bad practice?

  - by Lchi

  I've been told by professors and peers at my university that using the break statement is bad practice, but through my coursework haven't come up with a great reason why. Those who claim that it is bad say that it's a "get out of jail free card" and that you can always avoid using it. My guesses for why its considered bad would be that you could possibly skip some cleanup code after the break, or similarly exit some control structure in an inconsistent state. Is there any reason why using break is(n't) bad practice?

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• Best practice or performance difference between ToString() and & concatenation

  - by slolife

  When I am concatenating object values together to form a string in VB.NET, is there a difference in performance or a recommended best practice between using the & concat or the + concat with calls to .ToString() on each object? Example (which is faster or best practice): Dim result1 As String = 10 & "em" Dim result2 As String = 10.ToString() + "em"

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