Error: Failed to write string

[Soroid]

Enter URL: https://www.youtube.com/watch?v=Xr9f-hwZAtw

2014.06.19

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.youtube.com/watch?v=Xr9f-hwZAtw', '-ci'
, '-o', 'C:\Music\ToBeDone\2014-06-19%(title)s.%(ext)s', '-f', 'best', '-x'
, '--no-mtime', '--add-metadata', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp932, pref cp1252
[debug] youtube-dl version 2014.06.19
[debug] Python version 2.7.5 - Windows-8-6.2.9200
[debug] Proxy map: {}
[youtube] Setting language
[youtube] Xr9f-hwZAtw: Downloading webpage
[youtube] Xr9f-hwZAtw: Downloading video info webpage
[youtube] Xr9f-hwZAtw: Extracting video information
[youtube] Xr9f-hwZAtw: Encrypted signatures detected.
[youtube] encrypted signature length 82 (41.40), itag 22, html5 player en_US-vfl
azPBMd
[youtube] encrypted signature length 82 (41.40), itag 43, html5 player en_US-vfl
azPBMd
[youtube] encrypted signature length 82 (41.40), itag 18, html5 player en_US-vfl
azPBMd
[youtube] encrypted signature length 82 (41.40), itag 5, html5 player en_US-vfla
zPBMd
[youtube] encrypted signature length 82 (41.40), itag 36, html5 player en_US-vfl
azPBMd
[youtube] encrypted signature length 80 (41.38), itag 17, html5 player en_US-vfl
azPBMd
[youtube] encrypted signature length 83 (40.42), itag 136, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 247, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 135, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 244, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 134, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 243, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 133, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 242, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 160, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 140, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 83 (40.42), itag 171, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 136, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 247, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 135, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 244, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 134, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 243, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 133, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 242, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 160, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 140, html5 player en_US-vf
lazPBMd
[youtube] encrypted signature length 82 (41.40), itag 171, html5 player en_US-vf
lazPBMd
ERROR: Failed to write string
Traceback (most recent call last):
File "youtube_dl\YoutubeDL.pyo", line 527, in extract_info
File "youtube_dl\YoutubeDL.pyo", line 564, in process_ie_result
File "youtube_dl\YoutubeDL.pyo", line 830, in process_video_result
File "youtube_dl\YoutubeDL.pyo", line 1025, in process_info
UnavailableVideoError: Failed to write string

Here is the batch part of my script that changes based on a couple things

set /p "var1=Enter URL: " %=% pause
if defined var1 set "var1=%var1:"=%"
This part of the script asks you to enter the url and sets the url as Var1

set "var2=%date:/=-%"
This part of the script sets the date as var2

set "var3=%%(title)s.%%(ext)s"
This part of the script... might be useless
uhhh it's supposed to make the video file be named as
title.ext

ya...