lots of customers experience 'invalid Unity file'

Unity Engine
1

Hi,

On several sites, we’ve put Unity content, but users seem to get the ‘invalid Unity file’ error. This is odd. Most of the times on the Windows platform, sometimes with FireFox 3, sometimes IE6 or IE7.

E.g it appears here:
http://www.rijveiligmetmedicijnen.nl/view/page/simulator

I would really appriciate if people responded with “OKAY” or “PROBLEM” after checking it out, so that we can see what’s wrong with the template (we use the default template).

Thanks

2

Mac OS X 10.5.2
Firefox 3.0.3
WORKS
(although the stuff near the middle of the viewport is wobbly, as if it was being reftacted, made me nauseous :smile:)

3

Thanks for checkin’!

It’s a gimmicky racer (“medicin simulator”). You’ve been injected with a medicin that’ll blur your vision and changes respondse time.

We’re busy with a few new projects and experiencing the same “invalid Unity file” issues, so that’s why were curious.

4

What message exactly are you getting:

Is it this one: (Please double check that this is the message you are always getting)
Invalid data file
Data file is corrupt (not a Unity Web Player file)

It basically happens when the browser tells Unity that the download is complete, but the header of the file can either not be completely parsed or the header is incorrect. The most likely explanation for it is that the server is only serving a small part of the file for some reason or the download aborts for some other reason. What are you using to host the content?

Not that it would make a difference but the file name looks a bit strange
“car.unityweb.unity3d” Whats up with that double extension.

5

I get ‘Invalid Unity web file’. The loading progress bar doesn’t get all of the way across before it fails.

6

Invalid Unity web file

Mac OS X 10.5.5, Firefox 2.0.0.17

BUT: Works fine in Safari

7

No problems here in Safari or Firefox, OS X 10.4.11.

–Eric

8

Hi,

It’s “Invalid data file”.
We are using Linux to host the content (our own dedicated web server).
Wouldn’t this result in the same errors with browsers and OSes?
Is it a MIME setting?

The double extension is a mystery. When I build the project it is appended automaticly.

Jeroen

9

Works fine here on OS X 10.4.5 Safari

10

To add: Re-installing on Windows IE7:

error opening file for writing: C:\program files\unity\webplayer\mono\2.x.x\mono-1-vc.dl
11

WORKS. Safari. OSX 10.5.5

12

It’s not added by default on my build of 2.1. In any case, just rename the file and remove the .unityweb and update the html.

It seems like the issue is on both OS X and Windows. Since i’ve never seen this issue before with any unity content, I would think it is related to the web server. Possibly mime settings or something in the cache settings.

First thing I would try is hosting the file on another web server.

13

Hi,

I have renamed it. Now I am trying to add the mime on the server.
What is the exact MIME type for Unity?
(Is this application/unity3d ?)

It would be nice if people who had problems, tried again now that I have added the MIME type. Thanks! This could be a solution for in the Wiki.

Thanks!

14

ps:

If it is a MIME problem, how can it be that e.g col000r had issues in Firefox, but not Safari?

15

Works for me now. Last time i checked the issue was:

  • On Firefox, when both the 1.x and 2.x plugin is installed and visiting your page while it had the unityweb extension causes the issue. Same works fine on Safari, presumably because mime handling in Safari is different.

Now with your change, removing the unityweb extension it works correctly for me, so lesson to learn, don’t put unityweb as an extension on a unity3d file.

16

Noted! Great!

ps: I did add a MIME though. (Application/unity3d)

17

As I recall from a year ago, that double extension occurs when you’re upgrading a Unity 1.x project to 2.x. - apparently the .unity3d is appended to the entire filename you used in 1.x. (It was a minor inconvenience and didn’t seem worth reporting as a bug, at the time, but maybe it was!)

18

Hi Technicat,

Good to know.
Strange enough it’s v2.0 only :slight_smile:

19

I don’t have a solution, but I have had scattered reports that this was happening as well. So presumably it’s happening more but most aren’t bothering to try and contact someone about it. There hasn’t been a good opportunity to get further information.

-Jon

20

Hmm that is worrying. Do you have info on which browsers this happens or does it seem random?

I still get reports; it seems this isn’t fixed yet :frowning: