Unable to run loadUI with shell comment line on Linux

Hello there!

I just tried installing a fresh copy of LoadUI 2.6.8 and tried running the shellscript loadUI-cmd.sh from scratch.
I encountered none of the issues you describe.

Is it possible for you to install and run "dos2unix loadUI-cmd.sh" and see if that helps?
Did you modify the script in any way?

If it still doesn't work just try running the binary, it should work:
./LoadUI-Pro-2.6.8 --cmd=true

It's located in the installation root.

Best regards,
Mikael

Osten wrote:
Is it possible for you to install and run "dos2unix loadUI-cmd.sh" and see if that helps? Did you modify the script in any way?

You got it! Running dos2unix solves this problem! Thank you very much. I transfert the LoadUI-2.6.8-64bit.sh install file in my Linux Ubuntu server using WinSCP in binary mode. But it seems that the loadUI-cmd.sh file kept all "windows" carriage return characters so it prevent the script runnning correctly.

But now, I'm still unable to run the loadUI-cmd.sh script in shell command as I'm facing another issue. Here is my new error message:

(java:2082): Gtk-WARNING **: cannot open display: localhost:0.0

mariobrissette wrote:
But it seems that the loadUI-cmd.sh file kept all "windows" carriage return characters so it prevent the script runnning correctly.

Yup, that's definitely what broke it.

mariobrissette wrote:
But now, I'm still unable to run the loadUI-cmd.sh script in shell command as I'm facing another issue. Here is my new error message: (java:2082): Gtk-WARNING **: cannot open display: localhost:0.0

From the looks of it, you are running on a headless environment. And you are trying to start the command-line runner which can produce reports. In order to produce reports that involves graphs, the JavaFX2 environment has to be launched.

Some assumptions in the JavaFX2-core are related to that a display has to exist in order to launch the framework.
I strongly agree that this is a bad assumption, and i hope it'll be fixed in the future.

In the meantime, however, there are workarounds. This involves installing an X virtual framebuffer, or emulating a fake X window system.

the steps to accomplish that are as follows on a Ubuntu 12.04 Server Edition:

Install this:
sudo apt-get install xvfb x11-xkb-utils libxrender-dev libxtst-dev libgtk2.0-0

Make sure this is executed. Preferably done on startup, by /etc/init.d/Xvfb or upstart:
Run Xvfb :99 -ac

Put this line in ~/.bashrc
export DISPLAY=:99.0

refresh the environment:
source ~/.bashrc

Now you should be able to run the commandline runner and be able to create reports if you want.

Have a look and see if you bump into any further problems.
If that's the case, let me know.

Best regards,
Mikael

This step run successfuly.

Osten wrote:
Install this: sudo apt-get install xvfb x11-xkb-utils libxrender-dev libxtst-dev libgtk2.0-0

I'm not sure about the following one

Osten wrote:
Make sure this is executed. Preferably done on startup, by /etc/init.d/Xvfb or upstart: Run Xvfb :99 -ac

Do I only need to create a file named Xvfb in the /etc/init.d/ folder and put inside the following line?
Run Xvfb :99 -ac

Excuse me but I'm a beginner with Ubuntu Linux so I'm a little bit confused about the script in init.d

I had some strange message about missing fonts so I search on Internet and found an apt-get for them. Now, when I'm running loadUI-cmd.sh with my parameters, here is the new error message:

Failed in XOpenDisplay

(java:2644): Gtk-WARNING **: cannot open display: :99.0

Thanks for your help!

Hey!

That's quite allright, i didn't want to enforce any special way of doing it since there are many ways to do it.

Alternative 1:
The easiest way is probably just to drop the following line in /etc/rc.local

Xvfb -ac :99 &

/etc/rc.local is best interpreted as a script that is always run when a system is started.
So restart the system and Xvfb will detach itself to the background of your system.

Alternative 2:
If you don't want to modify any startup-scripts then you could probably just run Xvfb in the background in the same terminal you run LoadUI

Xvfb -ac :99 &; ./loadUI-cmd.sh

This error message is due to Xvfb not running currently:
"(java:2644): Gtk-WARNING **: cannot open display: :99.0"

Hopefully that solves the last of the issues,
let me know if you bump into something else!

Best regards,
Mikael

This solves my issue!

Thanks a lot!

Hi,
i have the same issue if i try to start loadui from commandline:

Gtk-WARNING **: cannot open display:

I'm using RHEL 6(64bit), and accessing server per Putty to install and run LoadUi.

Can anyone give me some ideas? oder share some experiences using Loadui unter RHEL?

Thanks a lot.

Hey Cylds,

I believe this deserves a topic of its own as this one has been resolved.
Even though it looks similar its not exactly the same.

I need to know some things about your environment to proceed.
I'm assuming its a headless machine and that you are allowed to install packages on it?
The problem is related to that as LoadUI in headless mode still needs a display in order to start the JJavaFX2 framework (Not the UI itself).

If you had a display connected to the machine you could simply export DISPLAY=:0.0
If not, then you need to install Xvfb which i don't know exactly the packages for.

But create a new topic and i'll have a look!

Best,
Mikael