Cannot download Bilibili videos

[anphetamina]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.06.25. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2018.06.25

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

C:\Users\Antonio>youtube-dl -v https://www.bilibili.com/video/av25723607
[debug] System config: []
[debug] User config: ['-o', 'D:/Antonio/Downloads/%(title)s.%(ext)s']
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.bilibili.com/video/av25723607']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2018.06.25
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17134
[debug] exe versions: ffmpeg 4.0, ffprobe 4.0
[debug] Proxy map: {}
[BiliBili] 25723607: Downloading webpage
[BiliBili] 25723607: Downloading video info page
[download] Downloading playlist: 【轩子助眠减压】镊子和史莱姆~戴上耳机
[BiliBili] playlist 【轩子助眠减压】镊子和史莱姆~戴上耳机: Collected 5 video ids (downloading 5 of them)
[download] Downloading video 1 of 5
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'http://upos-hz-mirrorcos.acgvideo.com/upgcxcode/76/00/43900076/43900076-1-80.flv?um_deadline=1530278866&platform=pc&rate=421600&oi=2182678639&um_sign=e3d67a1293b3ec320d77013605b9e17f&gen=playurl&os=cos&trid=6bf4f66f0d394246a0ec6c596a214eca'
[download] Destination: D:\Antonio\Downloads\【轩子助眠减压】镊子和史莱姆~戴上耳机.flv
[download] 100% of 85.15MiB in 03:15
[download] Downloading video 2 of 5
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'http://upos-hz-mirrorcos.acgvideo.com/upgcxcode/76/00/43900076/43900076-2-80.flv?um_deadline=1530278866&platform=pc&rate=459000&oi=2182678639&um_sign=d10217fa1acf92ca9278e9d51df03a2f&gen=playurl&os=cos&trid=6bf4f66f0d394246a0ec6c596a214eca'
[download] D:\Antonio\Downloads\【轩子助眠减压】镊子和史莱姆~戴上耳机.flv has already been downloaded
[download] 100% of 85.15MiB
[download] Downloading video 3 of 5
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'http://upos-hz-mirrorcos.acgvideo.com/upgcxcode/76/00/43900076/43900076-3-80.flv?um_deadline=1530278866&platform=pc&rate=442000&oi=2182678639&um_sign=4a2297072d20ffbf4c24e37cf718f04e&gen=playurl&os=cos&trid=6bf4f66f0d394246a0ec6c596a214eca'
[download] D:\Antonio\Downloads\【轩子助眠减压】镊子和史莱姆~戴上耳机.flv has already been downloaded
[download] 100% of 85.15MiB
[download] Downloading video 4 of 5
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'http://upos-hz-mirrorcos.acgvideo.com/upgcxcode/76/00/43900076/43900076-4-80.flv?um_deadline=1530278866&platform=pc&rate=528700&oi=2182678639&um_sign=e023082770cbcdf241ae6d205a4502da&gen=playurl&os=cos&trid=6bf4f66f0d394246a0ec6c596a214eca'
[download] D:\Antonio\Downloads\【轩子助眠减压】镊子和史莱姆~戴上耳机.flv has already been downloaded
[download] 100% of 85.15MiB
[download] Downloading video 5 of 5
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on 'http://upos-hz-mirrorcos.acgvideo.com/upgcxcode/76/00/43900076/43900076-5-80.flv?um_deadline=1530278866&platform=pc&rate=484500&oi=2182678639&um_sign=164ccb6580839f5d31c1de5ad2425120&gen=playurl&os=cos&trid=6bf4f66f0d394246a0ec6c596a214eca'
[download] D:\Antonio\Downloads\【轩子助眠减压】镊子和史莱姆~戴上耳机.flv has already been downloaded
[download] 100% of 85.15MiB
[download] Finished downloading playlist: 【轩子助眠减压】镊子和史莱姆~戴上耳机

Description of your issue, suggested solution and other information

Cannot download all 5 videos from this url: https://www.bilibili.com/video/av25723607.
I've tried using -F and --referer commands in combination with adding index_1.html at the end of the video link but it doesn't work.

[dstftw]

Your output template does not provide filename uniqueness as clearly stated in the log.

[anphetamina]

What do you mean? I got only one video file from that.

[dstftw]

Once you touch -o it's your responsibility to provide output template thal will produce unique filenames for each file. Yours fails to do so. Don't touch it if you have no idea of what are you doing.