Hi, I had the same problem with JMyron, I think there may be a problem with the library and I also think the way in which libraries are added to processing is very complicated. There is another post in this forum detailing how it should be done but even then it still has problems.

" I also think the way in which libraries are added to processing is very complicated"
"Unzip library archive in the libraries folder" Hard to make simpler... Now, some library makers might forget to make a sub-dir of appropriate name in the archive, so you have to make it yourself, but basically, it isn't so hard.
I installed a number a libraries, never had a real issue. But then again, most of them are pure Java libraries, no video libraries, very little sound libraries. Libraries with native code dependencies can be more problematic. I saw lot of people having issues because they used 64bit Java with Processing, with these libraries.

I have over 20 libraries installed and I think this totally depends on the library. The reason for problems is almost always external dependencies (and sometimes just system incompatibility).

IN MY OPINION...

Some examples that are very easy and problem-free to install are colorLib, controlP5, geomerative, peasycam, toxiclibs and hemesh. I could go on... Some examples that can indeed be problematic are (no offence) OpenCV, ttslib, CLNUI 4 Java and GLGraphics. Again, mainly because of external dependencies. From my experience I'd say at least 80% of libraries can be installed problemfree.

I have a number of libraries installed already -GSvideo, Toixilabs, Moving letters etc...so the problem is not the so the installation it is more of compatibility issue.

I know how to install libraries inside out at this stage and I believe I may have downloaded nearly every little plugin, addon, extra .dll's and codec packs. It is just frustrating as I can see such potential for unbelievable creativity in the language and libraries but it shouldn't be this hard.

one other thing some of the libraries only work from

/mydocuments/processing/libraries/GSvideo/library

and others only work from

processing1.2.1/libraries/toxilibs/library

I know this is messed up so  I think I'm just going to reinstall all the java/processing/library files and start fresh.

Maybe its a windows thing.... is it time to jump ship

As has already been pointed out, the issue here isn't with Processing and tends to crop up only with libraries that have external dependencies.  The moment you need to interface with hardware - like webcams - you run into the age old problem that different platforms seem to handle things differently.  I have to sympathise with the library authors here as we can't really expect them to be able to test their libraries on every available platform - that's more or less impossible!  Perhaps we need to do a better job of documenting any idiosyncrasies of specific libraries on different platforms?  Or at least submit these to the library authors so they can either address them or document them...

For what it's worth I've also had plenty of problems getting video libraries working on a Windows 7 x64 PC.  I did manage to get OpenCV working just fine in the end, with the help of instructions I found on the forums.  IIRC you have to manually set a path somewhere; I'm sure a search will turn up detailed instructions, but if not I'll try and find the ones I used ;)

Perhaps we need to do a better job of documenting any idiosyncrasies of specific libraries on different platforms?  Or at least submit these to the library authors so they can either address them or document them...

Or just create appropriate entries in the Wiki: it is a good place to gather common knowledge needing fast or frequent updates.

Hi, I'm willing to add notes about GSVideo/GLGraphics, if there is an appropriate section to do so.

would be interesting to see some stats, but i have the feeling that not a lot people use the wiki they way it could be used