The youtube-dl app has been acting strange. Sometimes it works and sometimes
it doesn't. This morning I was able to download two files then nothing, same
thing a few days ago. when it fails i get the following message:

youtube-dl http://www.youtube.com/watch?v=10813m5GDz8
Retrieving video webpage... done.
Extracting URL "t" parameter... failed.
Error: unable to extract URL "t" parameter.
Try again several times. It may be a temporary problem.
Other typical problems:

* Video no longer exists.
* Video requires age confirmation but you did not provide an account.
* You provided the account data, but it is not valid.
* The connection was cut suddenly for some reason.
* YouTube changed their system, and the program no longer works.

Try to confirm you are able to view the video using a web browser.
Use the same video URL and account information, if needed, with this
program.
When using a proxy, make sure http_proxy has http://host:port format.
Try again several times and contact me if the problem persists.

Has anybody else with this app had the same problem?