Following the instructions on the pipelight installation page, I installed pipelight on Ubuntu 14.04. However, upon opening firefox the .wine-pipelight folder isn't present in my home folder, and I get the following errors:

[PIPELIGHT:LIN:unknown] attached to process.
[PIPELIGHT:LIN:unknown] checking environment variable PIPELIGHT_SILVERLIGHT5_1_CONFIG.
[PIPELIGHT:LIN:unknown] searching for config file pipelight-silverlight5.1.
[PIPELIGHT:LIN:unknown] trying to load config file from '/home/alden/.config/pipelight-silverlight5.1'.
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:427:checkSilverlightGraphicDriver(): error in execlp command - probably silverlightGraphicDriverCheck not found or missing execute permission.
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:441:checkSilverlightGraphicDriver(): GPU driver check - Your driver is not in the whitelist, hardware acceleration disabled.
[PIPELIGHT:LIN:silverlight5.1] using wine prefix directory /home/alden/.wine-pipelight.
[PIPELIGHT:LIN:silverlight5.1] checking plugin installation - this might take some time.
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:374:checkPluginInstallation(): error in execvp command - probably dependencyInstaller/sandbox not found or missing execute permission.
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:384:checkPluginInstallation(): Plugin installer did not run correctly (exitcode = 1).
[PIPELIGHT:LIN:silverlight5.1] basicplugin.c:108:attach(): plugin not correctly installed - aborting.

I've reinstalled quite a few times and ran through many of the common fixes offered on the pipelight Launchpad pages and here on AskUbunta and still it fails to run.

Is there a reason why this folder isn't present, or why I'm getting these errors?

Edit: Oddly enough, the .wine-pipelight folder is created wtih I open Nitro, although this still doesn't fix the issue.