In my last post I discussed about creating a Hello World application in WatiN. In this post I will focus on typical problems that can entail the usage of WatiN.
WatiN Not Executing
If your application gives a strange error message and does not execute, go to references and see if you have the reference "Interop.SHDocVw" added. If it is added, then it is no co-incidence that your code is not running, delete it and try again, it should work now.
If you are using a 64-bit machine with .NET Framework 4, you have to change the properties of your project in order to make your application work. As discussed in this blog (from step 7 onwards), you need to go to the properties of your project (by right clicking on your project in solution explorer) and under the text "target framework", change the value of dropdown to ".NET Framework 4". Recompile and it should work now.
Working with Firefox instead of Internet Explorer
Just like you use the code "IE browser = new IE()", you could also use "Firefox browser = new Firefox()" and start working with Firefox rather than Internet Explorer. However, this will come with its own share of problems.
To the best of my knowledge, to date WatiN is incompatible with Firefox 4, so you need to revert to Firefox 3.6 (or any other version of Firefox 3) in order to let WatiN work successfully with Firefox.
Sometimes the problems do not end here, and you get a JSSH error. There is nothing alarming about this error, and if you get it, all you need to do is download JSSH Firefox extension, which could also be downloaded manually from here, and your problem will end.
If your problems do not end here, feel free to inform me of your problems in the comment box below.
Advice for WatiN-Firefox users
As an alternate to Internet Explorer's development tools, Firefox has an add-on called Firebug, which is very easy to use and extremely powerful. While using it you just need to right click on any part of the webpage and click on Firebug to get all the information you need.
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