Logging in... done.
Retrieving video webpage... done.
Retrieving info data... done.
Extracting URL "url" parameter... Error: cannot extract url parameter.
Try again several times. It may be a temporary problem.
Other typical problems:
* Video no longer exists.
* You provided the account data, but it is not valid.
* The connection was cut suddenly for some reason.
* Your account is free and perhaps only usable at 02:00 to 19:00 (+0900).
* Niconico 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.
現象：コメントがダウンロードできません． 環境：OSX 10.11 nicovideo-dl 2011.02.08
Logging in... done. Retrieving video webpage... done. Retrieving info data... done. Extracting URL "url" parameter... Error: cannot extract url parameter. Try again several times. It may be a temporary problem. Other typical problems:
* Video no longer exists. * You provided the account data, but it is not valid. * The connection was cut suddenly for some reason. * Your account is free and perhaps only usable at 02:00 to 19:00 (+0900). * Niconico 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.