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• Coming Soon - JavaOne Latin America 2012!

  - by reza_rahman

  Save the date for JavaOne Latin America 2012 -- 4-6 December! The conference will be held again at the Transamerica Expo Center in São Paulo, Brazil. The content is shaping up nicely. Here is a preview of some of it: Designing Java EE Applications in the Age of CDI HTML5 WebSocket and Java JAX-RS 2.0: New and Noteworthy in the RESTful Web Services API What’s New in Java Message Service 2.0 Why Should I Switch to Java SE 7 Hope to see you there! More details and registration here.

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• Failure to download extra data files

  - by armanke13

  After fresh install 12.04 I && updating apt and system restart, I always get this annoying message after reboot : Failure to download extra data files The following packages requested additional data downloads after package installation, but the data could not be downloaded or could not be processed. ttf-mscorefonts-installer The download will be attempted again later, or you can try the download again now. Running this command requires an active Internet connection. But if I run attempt now, it shows flashing terminal window and like nothing happen. It'll happen again when I restart system. I found someone have this problem too, but he haven't replied yet. I'm a newbie here, please help, thanks ^^

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• Event Aggregator.. not getting a response, how to determine completion?

  - by Duncan_m

  I'm rewriting a vehicle tracking application, a google maps based thing.. The users are able to search for a vehicle by typing a few characters of the vehicles "callsign". My application is based around a sort of "event bus" within Backbone.. when a search occurs I send a message on the bus saying something like "does anyone match this?".. If a marker matches the search term it responds with a sort of "yes, I match!".. My challenge arises when no-one matches, I get no response.. it feels a little hacky to "wait a little while" and check if a response has been recieved.. The application is based around Backbone.js and using the Event Aggregator pattern described in the answer to this question on Stack Overflow: http://stackoverflow.com/questions/7708195/access-function-in-one-view-from-another-in-backbone-js Is there a well defined design pattern that might assist me here? Sending a request for a response and not getting any responses?

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• What's the risk of upgrading over SSH?

  - by C. Ross

  When I run sudo do-release-upgrade over ssh, I get the following message. This session appears to be running under ssh. It is not recommended to perform a upgrade over ssh currently because in case of failure it is harder to recover. If you continue, an additional ssh daemon will be started at port '9004'. Do you want to continue? What is the real risk of upgrading over ssh? How does the additional ssh daemon help mitigate this?

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• How do I stop banshee remembering what's been played?

  - by dunderhead

  How can I prevent Banshee from remembering what files I have played? I really hate the way it keeps surprising me by automatically playing, after the current track, the previous file it had played. I really HATE that. I was just listening to a beautiful piece of music and in a nice mood when Banshee, without asking me, immediately afterwards, started playing a really annoying answerphone message from earlier. My solution so far is to manually delete all files in the playlist, but obviously that's not a long term solution. I cannot find an option anywhere that says "Do not remember my history" (Did I mention I hate the way Banshee plays my files without asking me?)

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• mayavi2 installing has problem (ubuntu 12.04)

  - by user98865

  I'm using ubuntu 12.04 and python 2.7.3-0ubuntu2 is already installed. I have a problem during installing mayavi2 from ubuntu software center. Error message is : Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time. Details: The following packages have unmet dependencies mayavi2: Depends: python-numpy (= 1:1.6.1) but 1:1.6.1-6ubuntu1 is to be installed Depends: python-numpy-abi9 but it is a virtual package Depends: python (< 2.8) but 2.7.3-0ubuntu2 is to be installed Depends: python-vtk (= 5.4.2-5) but 5.8.0-5 is to be installed I've searched to solve this problem for a long time but I didn't solve yet. What can I do?

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• VirtualBox VERR_ACCESS_DENIED for Ubuntu 11.10

  - by kaspnord

  I installed Ubuntu 11.10 on VBox. The VBox settings I use have been tried and proven for countless other installs I have done in the past. Those are still up and running. On my latest install of Ubuntu 11.10 on Vbox, things were working well in the initially - I installed Guest Additions and everything was fine. All of a sudden (I was just moving my mouse), I get an accessed denied error that freezes my entire Ubuntu environment. I close the virtual machine and restart it, but now I keep getting this error message: Any help would be greatly appreciated.

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• Drupal node access for anonymous users

  - by MrDresden

  I've never used Drupal before so this may be something that can easily be remedied, and that would be awesome. My problem is that a block, containing node information can't be viewed by anonymous users (unregisterd/not logged in), gives a "You are not authorized to access this content." message, but shows up for logged in users. The nodes that the block contains are events, so the block shows events for the next week. I've checked the users access settings but can't find anything that could possibly remedy this. I'm using drupal core 6.26, Event 6.x-2.x-dev, Event views 6.x-2.4 If anyone has any information, or solutions, I'd greatly appreciate it.

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• Ubuntu One Files for Android will not let me log in

  - by user20867

  I installed Ubuntu One Files on my Nexus One phone. When I tap Log in on the main screen, the app tries to log in then after a few seconds returns the following message: Log-in failed, please try again later. I have an Ubuntu One account, and when I tap Register on the main screen for Ubuntu One Files, I can log in using my phone's Web browser. But if I go back to the app and try to log in, I get the same error. Again, my phone is a Nexus One running Android 2.3.4. The phone is not rooted or modded in any way.

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• Out of range on shut down, Log Out, Restart and Suspend

  - by user52889

  I have looked extensively on the help forums but haven't found a similar problem. Whether I want to Shut Down, Restart, Log Out or Suspend, as soon as I select my desired option the screen goes black with a message (Out of Range displayed in the middle of the screen. No combination of keys frees the screen and I have to manually hold the power button on my PC to shut it down. There is no problem on start up. My computer is a dual boot with Windows 7.

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• Fixing a broken toolbox (In Visual Studio 2010 SP1)

  - by mbcrump

  I was recently running into a situation where every time I opened Visual Studio 2010 SP1, the following message would appear for about 60 seconds or so: "Loading toolbox content from package Microsoft.VisualStudio.IDE.Toolbox.ControlInstaller.ToolboxInstallerPackage '{2C98B35-07DA-45F1-96A3-BE55D91C8D7A}'" After finally get fed up with the issue, I started researching it and decided that I’d share the steps that I took to resolve it below: I first made a complete backup of my registry. I then removed the following key: [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\10.0\Packages\{2c298b35-07da-45f1-96a3-be55d91c8d7a}] I went to the following directory: C:\Users\Your Name Here\AppData\Local\Microsoft\VisualStudio\10.0\ and created a folder called bk and moved the .tbd files to that folder (they are hidden so you will have to show all files). I then removed the .tbd files in the root directory. I then launched Visual Studio 2010 SP1 again and it recreated those files and the problem was gone. Anyways, I hope this helps someone with a similar problem. I created this blog partially for myself but it is always nice to help my fellow developer.  Thanks for reading. Subscribe to my feed

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• How would you approach developers you don't already know as a developer to offer them a position? [closed]

  - by Kit Sunde

  We've been trying to find a second developer for the company and have posted job ads online but so far there have been no developers that have been interested, and only a single one that has some experience in Python (that failed a fairly basic practical). It seems like the it's really difficult to find decent people here in Singapore, even reasonable juniors that you can teach. I'm contemplating whether I should go reach out directly to people on Stack Overflow and github and in the hopes that they are interested. I'm thinking I would message the person with only a few sentences, stating the they seems capable from their online presence and that I'd like to work with them. Is this kosher? I know I dislike recruiters and unsolicited mail just as much as the next guy.

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• Steam not opening or responding at all

  - by user109409

  The steam client won't open nor does it display any error message. I have tried right click > Games. I ran steam steam://open/games command, but the client just does not respond. Removing it with apt-get remove steam, deleting the Steam directory & the .deb file and reinstalling it, did not work either. This problem only occurred after I used killall steam.sh to force quit it, it was working fine before. I'm running 12.10 on a 64bit laptop with no additional drivers installed. Anyone else have this problem and a possible workaround? Thank you

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• Issues with upgrade to ubuntu 14.04

  - by SUBPUR

  First, I should say that I am a total beginner. When answering, please do not take for granted that I understand even the most basic step. Now for my question: Yesterday, I was given the option to update to ubuntu 14.04. I clicked yes, and the system took about 2.5 hours to accomplish this task. Now, whenever I log into my user account, I get an error message and then I am asked to authenticate my user account. When I try to enter the password, my computer freezes. Please help, what can I do to fix this?

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• VMWare Unity Mode with Ubunty 12.10

  - by Nick

  This is a very difficult thing to search for, and find an answer to because of the unfortunate choice VMWare and Ubuntu both having something called "Unity". My host operating system is Windows 7 - 64 bit, running VMWare Workstation 9.0.1. I have a virtual machine running Ubuntu 12.10 - 64 bit. When I attempt to put VMWare in "Unity mode", I get the following message: The virtual machine cannot enter Unity mode because: - Unity is not supported on the guest operating system. From the VMWare site, there is nothing listed that says that Ubuntu is not supported for this... and I have installed the latest vmware-tools on the guest operating system. It seems like a lot of people have had this issue, but I haven't seen a good resolution to it yet. Does anyone know how to get Unity mode working with Ubuntu?

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• Webmin no longer works - connection rejected

  - by Omeed

  I've had webmin installed on my 12.04 server and everything has been fine until recently. Now when I navigate to https:// myip:10000 I get a message saying the connection attempt is rejected. The last thing I did was set up a cron job to start utorrent webUI. I tried reinstalling but no change. When I check with netstat I see a webmin entrance on port 10000. I've also reset the iptables and allowed everything. I'm at a loss as to what to do now.

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• OKI-B2540 printer doesn't print?

  - by NCLI

  There is a driver for the OKI-B2520, and it is automatically selected when the printer is connected. From looking at various websites, it seems like the B2500, B2520, and B2540 all work perfectly fine with the OKI-B2520 driver, so I let it install that. Everything went smoothly, the printer shows up as available, and I can queue jobs without any problems, and they disappear after a few seconds. However, nothing actually comes out. There is no error message on the printer display, or from Ubuntu. This is the output from the CUPS error log: http://pastebin.com/S6ifZAup So my question is: What is wrong??

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• WinRAR extracting file before checking password? [closed]

  - by opatachibueze

  I tried extracting an encrypted rar file today, and I discovered that I had to wait the same amount of time I'll wait before a file is extracted (extraction reaches 99% completion) for WinRAR to conclude it's the wrong password (winrar message: "CRC failed wrong password or corrupt file?") . My guess is that this file is somewhere on the Computer just before the detection, - it has to be and then gets deleted after it's verified that the password is not the same? Is there anyway I can forcefully get this file from the PC? Thanks.

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• VS2010 changes your ASP.NET Version on setup projects to 4 - regardless

  - by blomqvist

  When converting your projects to VS2010 you get the question to migrate them to .net4. But even if you do not do that VS set the ASP.NET version to 4 for setup projects. And then when you try to install your application on a machine that does not have .NET 4 installed you will get the error message: “Could not open key: Software\Microsoft\ASP.NET\4.0.30128.0. Verify that you have sufficient access to that key, or contact your support personnel” What you need to do is to change the ASP.NET version back to 2.0 if that is what you want to use. You do that in the properties of the setup project.

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• Can't boot - "Waiting for Network Configuration"

  - by user213017

  After an update on 13.10, my PC won't boot Ubuntu any longer. It displays the infamous "Waiting for Network Configuration" message and then hangs. I can go into recovery mode, and choose "Start networking" and then go to a root prompt, and that works fine. Ping works. /etc/network/interfaces contains just the two lines "auto lo" and "iface lo inet loopback". I've double-checked that my network is working, the cable is working (it works on another PC) and the network card seems to indicate a connection. Any suggestions on how to get my PC booted again? Right now I'm limited to a root shell prompt.

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• Why does Evolution give me multiple reminders for the same event?

  - by Dylan McCall

  I have a bunch of calendars on my Google Calendar account (school & work, personal, etc.), so I have Evolution subscribed to each one of those calendars. When I get a notification for an upcoming (recurring) event, I actually get many notifications for the same event, all at the same time. For example, just now I got 21 notifications for one event. I am using Gnome Shell, where the message tray displays event notifications in its own way. I get the same behaviour on my other computer, also running Ubuntu 11.10 with Gnome Shell. (And it has happened running Unity where Evolution only shows its dialog window with event reminders, but I'm not sure if it has happened quite as intensely). Does someone know why this is happening, and maybe how to fix it? It would be cool to get slightly less panic-inducing event reminders :)

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• Cannot start service SPUserCodeV4 on computer

  - by ybbest

  When you create a sand boxed solution for SharePoint 2010 in Visual Studio 2010 and try to deploy the solution , you could get the error “Error occurred in deployment step ‘Retract Solution’: Cannot start service SPUserCodeV4 on computer”(See the Picture1 below). In order to fix this , you need to go to Central Administration -> System Settings -> Manage services on server and start service “Microsoft SharePoint Foundation User Code Service” If you are developing SharePoint on DC(Domain controller),you need to check the solution from my previous post. Error message.(Picture1) Locate Microsoft SharePoint Foundation User Code Service.(Picture 2)

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• GNOME 3.6 : modifications de l'interface, refonte du gestionnaire de fichiers, la version controversée de l'environnement de bureau sort

  Sortie de GNOME 3.6 Beta Tiroir de notifications repensé, GTK+ 2 augmenté et intégration de Kerberos L'équipe du projet GNOME a annoncé la sortie de GNOME 3.5.90, une version transitoire qui représente la première Beta de la 3.6, prévue pour fin septembre. C'est en fait la dernière étape pour apporter de nouvelles fonctionnalités ou changements avant la stabilisation du code, qui concentrera exclusivement les efforts sur la correction de bugs. On énumère un changement majeur dans le tiroir des notifications (message tray). À présent, les utilisateurs doivent l'invoquer manuellement, au lieu d'avoir une apparition automatique lors de chaque notification entrante. Le tiroir du Shel...

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• Is it better to use a Database or a data structure for network stack?

  - by poly

  I've built a multi threaded messaging application in C and I'm currently using a MySQL Memory table to save the session ID, but I'm not sure whether this was a good decision or not. It works like this, the application sends a message and saves the source session ID in the MySQL table. When the application gets the success response it will remove the session's ID from the MySQL table, or if it received an error response then it will keep the ID to be retried later. I've built it this way so that I don't need to care about building a data structure by myself, and the Database provides flexibility when it comes to querying it. Do you think this is appropriate or do I need to use something else? Please note that the application is expecting to handle a large number of transactions/sec.

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• Changing Wallpaper on 12.04 Login Screen

  - by userIsAMonkey

  I'm using this link but seems to be not working on 12.04, here's the Terminal message below: Are there other softwares/tips for changing the login screen? I'm also using link but seems outdated. Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/claudiocn/slm/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. law@ubuntu:~$ sudo apt-get install simple-lightdm-manager Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package simple-lightdm-manager

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