We closed the program and turned the robot off and back on. After restarting the program, the problem was fixed.



Deleting unattached or loose pieces in the program blocks also helps.







Sent from my Sprint phone.

------ Original message ------
From: Jeff Beima
Date: 10/26/2013 3:58 PM
To: [log in to unmask];
Subject:Re: [VADCFLL-L] Help "A required file is broken"

It sounds like you are an unpatched version of NXT 2.1.  See the LEGO Education website for the latest patch that apparently does fix the problem (this link originally provided by Julia Marshel):

http://education.lego.com/en-gb/searchresult?q=2.1f3

In case this isn't it, here is another interesting post from John Barrett of the Cellar Dwellers last year on this subject:

My kids discovered that if there is a "bar" somewhere on the screen [unattached], then the program will not compile and download. By "bar", I mean one of the connectors that goes between blocks. Sometimes they are hard to find. You may need to recreate the program (as in create a completely new program) and copy the block values over. Cutting and pasting blocks from the old broken program to the new one will sometimes grab the offending bar, so beware if you try that approach.



Have fun!


Jeff Beima
Coach, Terra-Techno Tigers, FLL #9403

On Sat, Oct 26, 2013 at 3:16 PM, Barry Moses  <[log in to unmask]<mailto:[log in to unmask]>> wrote:
Hello,

During our practice both laptops began giving 'A required file is broken' error when downloading programs to NXT robots. It says driver needs to be reinstalled. I have reinstalled the software with no success.

Has this happened to anyone else?

Thanks,

Barry Moses
Seahawks Coach

Sent from Yahoo! Mail for iPhone
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