NetAnim error

[Masood Alam]

I am trying to run NetAnim in Ubuntu Server. when I do qmake NetAnim.pro it goes fine. When run make it says " make:nothing to be done for 'first'. When I do ./NetAnim I get the following response.

No protocol specified
No protocol specified
NetAnim: cannot connect to X server : 0.0

Somebody let me know the solution thanks

[John Abraham]

If you are building NetAnim for the first time, then you should not be getting " make:nothing to be done for 'first'".  Have you tried downloading again? are you sure you are executing "qmake NetAnim.pro" under the netanim directory? Are you running the commands are sudo / root user ? If yes, can you try without sudo or a non-root user?

The second problem is more related to you login account perhaps

see

http://stackoverflow.com/questions/646930/cannot-connect-to-x-server-0-0-with-a-qt-application

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[Masood Alam]

Hi John Abraham

 

Thanks for your reply. I have done the following now

 

1- downloaded  again .....status ok

2- make clean                status ok

3-  qmake NetAnim.pro    status ok

4- ./NetAnim  with root user  under /netanim        status:     NetAnim: cannot connect to X server : 0.0    

5- ./NetAnim  without root user  under /netanim        status:     NetAnim: cannot connect to X server : 0.0        

 

Please help what could be the possible solution.

 

Thanks for your time          

[John Abraham]

after step 3 , did you try executing "make" to see if the executable "NetAnim" was created?

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[John Abraham]

to be clear 

please try the following as a non-root user

1. Download again or do "make distclean"

2. cd netanim

3. qmake NetAnim.pro

4. make

5. check if the executable "./NetAnim" is created in the same directory using "ls -l"  

[Masood Alam]

1.a:   Cannot Down load  it says " abort : destination 'netanim' is not empty "...I do not understand why? 

1.b:    make: *** No rule to make target 'disclean'.  stop.

2,3; Ok

4: make : nothing to be done for first........as I am running it second time right

5. I can see a file in green color named NetAnim with File permissions -rwxr-xr-x but when I ./NetAnim it says "NetAnim: cannot connect to X server "

 

I can give you ssh access for direct view into it if allowable as per group policies.

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[John Abraham]

start as non-root user and can you paste the output of 

mkdir test-dir

cd test-dir

hg clone http://code.nsnam.org/netanim

cd netanim

qmake NetAnim.pro

make

ls -l 

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[Kamyar Mohajerani]

I suspect you might not have an X server running at all! 

What is the output of "xset -q"? What about "ps -e | grep Xorg"?

xset -q

ps -e | grep Xorg

If you actually see the Xorg process in "ps" output then you might need to set the DISPLAY environment variable to the terminal where X is running. For example if X is running on the first terminal (where usually does):

export DISPLAY=":0.0"

Now try "xset -q" again and check the output.

IIRC X server is not installed in Ubuntu server but default, so you need to install it like this:

apt-get install xserver-xorg xorg -y

and maybe install a desktop environment like gnome.

You can also try running X by running "startx"

Good Luck!

[Masood Alam]

I have gone through all the steps you advised and the output is as attached. Please guide further

[John Abraham]

This is not related NetAnim, rather a generic issue related to xterm.

There are several threads related to it.

http://www.justlinux.com/forum/showthread.php?t=134911

http://www.linuxforums.org/forum/debian-linux/162907-cannot-connect-x-server.html

etc

usually the problem is related to building the executable as root or su, but not having access to xserver for that login.

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[Masood Alam]

The output is attached for the steps recommended eralier. The result is yet hopeless "cannot connect to xserver"

[noussaiba mel]

Hello everyone; 

i've installed NS3, NetAnim in ubuntu under windows,

but when i run ./NetAnim , i got the following error: 

                 NetAnim: cannot connect to X server 0.0

please help

[Gabriel]

To redirect GUI application to the X11 server on Windows (e.g. VcxSrv), add the following to the last line of ~/.bashrc:

For WSLv1: DISPLAY=:0

For WSLv2: DISPLAY=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2}'):0