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aframe9999's avatar
aframe9999
New member | Level 2
10 months ago

My iOS Dropbox app won't play one of my videos; it says the file extension's missing.

I have a video file on my PC (Win 11) that plays there.  I upload to drobox folder and it plays both in windows app and via web on PC. When synced to iphone (iphone 16 plus - iOS 18.3.1) the app (v...
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Walter's avatar
Walter
Icon for Dropbox Community Moderator rankDropbox Community Moderator
4 months ago

Hi there AC3EE963B1BF - sorry to hear about this.

Can you please let us know your device's exact OS version, and the version of the Dropbox app installed there?

Does this affect only mp4 files or other file types as well?

A screenshot of the exact error you're getting would also help!

AC3EE963B1BF's avatar
AC3EE963B1BF
Explorer | Level 3
4 months ago

Hi Walter, thanks for the prompt reply.

I'm on iOS 18.1 and was using Dropbox 432.2.4 when I got the error about the missing file extension. I've since updated the Dropbox app via the App Store (to the newest version available today), and now the error has changed.  Please see the screenshot attached.

I'm confused as to why I need to be online to view a file that's literally "available offline"? I want to watch these videos on an airplane, for example.

I haven't seen the error for file types other than ".mp4"…but I haven't tried many. It seems to be working correctly for smaller things like ".txt" and ".md", and .jpg/.png files.

  • Hannah's avatar
    Hannah
    Icon for Dropbox Community Moderator rankDropbox Community Moderator
    4 months ago

    Thanks for the screenshot and the additional info, AC3EE963B1BF.

    Have you added your Dropbox files to your Files app perhaps? And if so, are you able to view the videos from there?

    How about if you save them to your device?

  • Jay's avatar
    Jay
    Icon for Dropbox Community Moderator rankDropbox Community Moderator
    4 months ago

    Hi AC3EE963B1BF, just checking to see if you saw our last reply.

    If you're still experiencing the issue with your files not playing on your iOS device, could you assist us further with the information we requested in our last post?

    Otherwise, if you resolved this matter, please let us know what worked for you!

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