I can’t play games made with Unity 4 in the web player - I get “Failed to start Unity Player” error with the option to “Install Manually”.
I’ve tried this, also tried uninstalling the player first then re-installing from Unity Real-Time Development Platform | 3D, 2D, VR & AR Engine but no joy. I can run older Unity 3 stuff no problem, it’s just Unity 4 games that don’t work.
My player info is:
Unity Plugin version:4.0.1f2
Unity Engine version:3.5.7f6
How do I update the Engine version?
disable auto download… 
Where do I do that? and without auto download, where do I get the latest Engine version?
Hi @chris_b
This is not expected behaviour, but try to set the webplayer channel to release to update the engine to latest 4.x version. You can do that via right click → Release channel → select release.
Please also read all about this new update feature here
Thanks,
Chris
Ah - OK, the release channel was set to “stable”.
I changed it to release and now the page at Unity Real-Time Development Platform | 3D, 2D, VR & AR Engine reports:
Unity Plugin version:4.0.1f2
Unity Engine version:4.0.1f2
But if I go to http://webplayer.unity3d.com/setup/ the Unity plugin displays the same “Failed to start Unity Player” error with the option to “Install Manually”…
Maybe my computer just isn’t able to run Unity 4 stuff? It’s 32-bit Windows XP and DirectX9.
Your current channel is stable so default for you, so that is the 3.x engine / runtime, but with 4.x content it should detect that and use 4.x automatically.
The error you see could be preventing the webplayer from doing that.
Your version check is correct, I’m glad we have now established you are up to date.
The setup page I believe is built with older version of Unity but it should be compatible with the latest versions. Is there any error details? please check the WebPlayer log file: Unity - Manual: Log files - Please copy and paste the log file contents or attach it.
Based on the very brief machine info you gave you should be fine running Unity 4 stuff. System requirements here: http://unity3d.com/unity/system-requirements.
Try running demo’s from our site here: Discover the latest Unity demos and projects | Unity - anything but Mothhead is WebPlayer based.
If they run then you can run 4.x stuff.
Thanks,
Chris
And it is still not working. I do NOT know all the lingo and tech stuff. Just know that downloading over and over after deleting the file and restarting my machine didn’t work, holding down ALT while downloading didn’t work, and the demos from the Unity site are not working either. Any other suggestions??? [quote=“CreativeChris, post:6, topic: 495834, username:CreativeChris”]
Your current channel is stable so default for you, so that is the 3.x engine / runtime, but with 4.x content it should detect that and use 4.x automatically.
The error you see could be preventing the webplayer from doing that.
Your version check is correct, I’m glad we have now established you are up to date.
The setup page I believe is built with older version of Unity but it should be compatible with the latest versions. Is there any error details? please check the WebPlayer log file: http://docs.unity3d.com/Documentation/Manual/LogFiles.html - Please copy and paste the log file contents or attach it.
Based on the very brief machine info you gave you should be fine running Unity 4 stuff. System requirements here: http://unity3d.com/unity/system-requirements.
Try running demo’s from our site here: http://unity3d.com/gallery/demos/live-demos - anything but Mothhead is WebPlayer based.
If they run then you can run 4.x stuff.
Thanks,
Chris
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