Trouble with Open flow tutorial-xterm display error and not in the sudoers file error

I am trying to do this open flow tutorial and I am completely new to networking and systems. I am a college student and I need help with this. I have finished a part of the tutorial (http://www.openflow.org/wk/index.php/OpenFlow_Tutorial) and I am able to get the "ssh -X mininet@ipaddress" command working. If i type xterm next, it is giving me a display is not set error but when I open the terminal again and just type xterm without typing the ssh -X thing, it is opening a new window for xterm. I am confused. Is that what it is supposed to do? The next part of the tutorial asks me to type "sudo mn --topo single,3 --mac --switch ovsk --controller remote" in my ssh terminal and this is what happened when i tried it.

 

 

Last login: Fri May 17 19:34:53 on ttys003

mobile-172-16-103-167:~ SHREYA20$ ssh -X mininet@192.168.56.1

Password:

X11 forwarding request failed on channel 0

Last login: Fri May 17 19:35:19 2013 from 192.168.56.1

mobile-172-16-103-167:~ mininet$ ssh -Y mininet@192.168.56.1

Password:

Last login: Fri May 17 23:46:27 2013 from 192.168.56.1

mobile-172-16-103-167:~ mininet$ sudo mn --topo single,3 --mac --switch ovsk --controller remote

 

 

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

 

 

To proceed, enter your password, or type Ctrl-C to abort.

 

 

Password:

mininet is not in the sudoers file.  This incident will be reported.

mobile-172-16-103-167:~ mininet$

 

I need to finish this tutorial soon and I need help with this. Any help would be greatly appreciated. Thank you!

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Trouble with Open flow tutorial-xterm display error and not in the sudoers file error

I am trying to do this open flow tutorial and I am completely new to networking and systems. I am a college student and I need help with this. I have finished a part of the tutorial (http://www.openflow.org/wk/index.php/OpenFlow_Tutorial) and I am able to get the "ssh -X mininet@ipaddress" command working. If i type xterm next, it is giving me a display is not set error but when I open the terminal again and just type xterm without typing the ssh -X thing, it is opening a new window for xterm. I am confused. Is that what it is supposed to do? The next part of the tutorial asks me to type "sudo mn --topo single,3 --mac --switch ovsk --controller remote" in my ssh terminal and this is what happened when i tried it.

 

 

Last login: Fri May 17 19:34:53 on ttys003

mobile-172-16-103-167:~ SHREYA20$ ssh -X mininet@192.168.56.1

Password:

X11 forwarding request failed on channel 0

Last login: Fri May 17 19:35:19 2013 from 192.168.56.1

mobile-172-16-103-167:~ mininet$ ssh -Y mininet@192.168.56.1

Password:

Last login: Fri May 17 23:46:27 2013 from 192.168.56.1

mobile-172-16-103-167:~ mininet$ sudo mn --topo single,3 --mac --switch ovsk --controller remote

 

 

WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.

 

 

To proceed, enter your password, or type Ctrl-C to abort.

 

 

Password:

mininet is not in the sudoers file.  This incident will be reported.

mobile-172-16-103-167:~ mininet$

 

I need to finish this tutorial soon and I need help with this. Any help would be greatly appreciated. Thank you!

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I'm having trouble renaming a bundle

Hello everyone,
please understand I am -very- new to this as I'm the only one amoung everyone I know to do this first.

At a (small) class I took we were told the bundle identifiers was uniuqely meant for com.domainName.YourName.

 

Thing is- I put in my bundle identifier "com.techgirl52.myCompanyName", when it should have been "com.techgirl52.productIdentifier." I'm beyond infuriation with myself at this point. Normlly I would have started over, but I already deleted my intended product title priorly "The Event" on a failed attempt last night. Believe me when I tell you, I was on the webite for 2 hours, 1 1/2 spent trying to find out HOW to load a binary (I couldn't find Application Loader, assuming it was online). The other half was filling out cert information, no biggie. Today I found the Application Loader through spotlight search and am trying to rectify my erorr.

 

I finally gave up at 2AM, and realized my mistake for submitting the app. The bundle identifier is off by "com.techgirl52.TheEventIOS", as my form online states "com.techgirl52.myCompanyName".

 

Here's my problem: My first app is a donation to a local church event. It's for their outreach program and I'm at whit's end about this. I deleted the first attempt for "The Event" last night when I thought it crashed and bugged, so I made a new one and called it "The Event Official App". I want this app to be SUPER easy to find and I think I killed that chance in stone.

 

I'm not doing anything to it right now... I'm too nervous to try anything without asking.
Is there a way I can rename my bundle identifier, or reach out to Apple and ask them to allow me to use "The App" as the app title? I'm truly afraid about how to go back at this. I know this is a lesson learned hard.

 

Thank you very much,
Techgirl-52.

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Trouble while moving a UITabBar object

I face trouble while i try to move my UITabBar object in a UIViewController.

 

Whenever I change the position of my UITabBar object by changing its frame.origin attribut, the object is correctly displayed at the position, however I lost the interface: whenever I select the UITabBarItem, the 'didSelect' method is not called anymore.

 

If I don't change its frame.origin attribut, the 'didSelect' method is called when I select an UITabBarItem. Is that a known issue?

 

I need to move this object programmatically, as while rotating the device, it does rotate but it doesn't stay at the bottom of the view. Any clue on how to fix it?

 

Thanks

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Tabbed Applications trouble

I am working with my first tabbed application in xcode. I am just testing with some stuff since I'm relatively new to programming. I am just using the 2 views already put into the template. I am putting a slider into the first view and am going to attach it to a text box with numbers. But that isn't the problem! This is probably really stupid and simple, but when i run the application just to see the stuff on the simulator, it is just showing a black screen. NO CLUE WHY! But its killing me and would love some help!

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