I have a big fan of Selenium and have been using Selenium for quite some time for testing of web-applications.
Recently, I upgraded my machine to Ubuntu Hardy Heron and the next day, I found that all the selenium tests started failling on my machine. On digging through the logs, I found the following information in the Selenium Server logs:
java.lang.RuntimeException: File was a script file, not a real executable: /usr/bin/firefox-bin
Before actually spotting this line, I was mis-led by other log messages; but I will not talk about them in this post.
The reason for the failing tests was that Selenium Server thought that the default executable found in the path (/usr/bin/firefox) was a script file and not an executable application for the browser. I am not sure why Selenium Server checks whether the path to the browser should not be a script.
The cause of the problem is that because of Ubuntu Hardy Heron upgrade, my firefox also got upgraded from 2.x to 3.x. The firefox browser executable in 2.x is a binary file; whereas for firefox 3.x, it is a script (.sh) file. As a result of this change, the check done by Selenium Server was failing.
I resolved this problem by providing explicit path to the Firefox 2 executable file in the java code. (I also tried providing explicit path to the Firefox 3 executable but that is no help).
So, the code for the Java Selenium test-case looks like this :
selenium = new DefaultSelenium("localhost", 4444, "*firefox /usr/lib/firefox/firefox-2-bin", url);
This is not a solution, if you want to test your app with Firefox 3. I haven’t figured out the solution for making it work with Firefox 3; but for the time being, I am happy with testing my application with Firefox 2.
If somebody has a solution for making it work with Firefox 3, please post the solution as a comment to the blog.
-Deepak
I really expect the solution for the Firefox 3. don’t want to rollback to Firefox 2.
i wasn’t successful making it work in F3, got it working in F2 though
I don’t know if you making it work with firfox 3?
dito.
Newest selenium-server.jar works with FF3.
Hi Friend,
i got the same problem in Windows system. What should i do to solve it???
Hi Friend,
While executing Selenium RC in Windows XP, system, i got the below exception. Please let me know how to resolve this problem?
java.lang.NullPointerException: sessionId should not be null; has this session been started yet?
Hi priya,
Even i have encountered that same problem.I have just started with selenium.Can you please tel me how do u managed that error??
Thanks,
Godwind
try selenium.start() after the constructor
Hi guys! Have you figured out a solution for the sessionId being null problem?
java.lang.NullPointerException: sessionId should not be null; has this session been started yet?
I’m getting this every timie from my EasyB tests but not from regular tests. And yes, I’m calling the selenium.start() thingy after constructing the DefaultSelenium object.
Guys,
Here is the solution for this.
Put at least 1 sec or 2 sec wait before start selenium.
selenium = new DefaultSelenium(“localhost”, 4444, “firefox”, “http://www.google.co.uk/”);
Thread.Sleep(2000); //This is for C#. Use specific language code for wait
selenium.Start();
After using the wait time I never got this problem. This is the work around and there is no fix from Selenium for this issue.
Hope this helps lot.
Hi, the Thread.Sleep(2000); line doesn’t resolve this for me?
Can anyone clarify what versions of firefox conflict with selenium? I am using FireFox 3.6.10 and Selenium server 1.0.3.
Thx
Hi Friends,
I am working in Fedora 12,php selenium RC. After starting the Selenium RC
server running the Test not work it Give Error like:
PHPUnit 3.3.17 by Sebastian Bergmann.
E
Time: 0 seconds
There was 1 error:
1) testTitle(WebTest)
RuntimeException: Could not connect to the Selenium RC server.
FAILURES!
Tests: 1, Assertions: 0, Errors: 1.
How it can Remedy, Waiting for a FAST reply
reply me at : anes(dot)pa@gmail(dot)com.
thankfully Anes P.A
Hello guys, I found out something interesting.
Firstly start the selenium and than set all the parameters.
selenium.start();
selenium.setSpeed(CadrIIIwTestConfiguration.getSeleniumSpeed());
selenium.setTimeout(10000);
If you try to execute the code in a reversed order, you get the above mentioned sessionId error
selenium.setSpeed(CadrIIIwTestConfiguration.getSeleniumSpeed());
selenium.setTimeout(10000);
selenium.start();
Good luck.
Hi, i m getting following error on running selenium java code “sessionId should not be null; has this session been started yet?”
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