From b919f9463e90600e3ca869426643d69edc42025c Mon Sep 17 00:00:00 2001
From: Iulian Onofrei <6d0847b9@opayq.com>
Date: Wed, 12 Aug 2020 16:24:54 +0300
Subject: [PATCH] Add alternative option to the embed-only error

For example, running:

```
youtube-dl https://player.vimeo.com/video/356169265
```

outputs:

> [vimeo] 356169265: Downloading webpage
> ERROR: Cannot download embed-only video without embedding URL. Please call
>   youtube-dl with the URL of the page that embeds this video.

Following the instructions and running:

```
youtube-dl https://www.raywenderlich.com/4720178-ios-accessibility-tutorial-making-custom-controls-accessible
```

outputs:

> [RayWenderlichCourse] 4720178-ios-accessibility-tutorial-making-custom-controls-accessible:
>   Downloading webpage
> [download] Downloading playlist: iOS Accessibility Tutorial: Making Custom
>   Controls Accessible
> [RayWenderlichCourse] playlist iOS Accessibility Tutorial: Making Custom
>   Controls Accessible: Collected 0 video ids (downloading 0 of them)
> [download] Finished downloading playlist: iOS Accessibility Tutorial: Making
>   Custom Controls Accessible

And only this works:

```
youtube-dl https://player.vimeo.com/video/356169265 --referer \
"https://www.raywenderlich.com/4720178-ios-accessibility-tutorial-making-custom-controls-accessible"
```
---
 youtube_dl/extractor/vimeo.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/vimeo.py b/youtube_dl/extractor/vimeo.py
index 421795b94..88d5b3382 100644
--- a/youtube_dl/extractor/vimeo.py
+++ b/youtube_dl/extractor/vimeo.py
@@ -601,7 +601,8 @@ class VimeoIE(VimeoBaseInfoExtractor):
                     raise ExtractorError(
                         'Cannot download embed-only video without embedding '
                         'URL. Please call youtube-dl with the URL of the page '
-                        'that embeds this video.',
+                        'that embeds this video, or by passing that to the '
+                        '--referer argument.',
                         expected=True)
             raise