Re: Damaged Mathematica Systems Files, and Deleting Mathematica Caches?

*To*: mathgroup at smc.vnet.net*Subject*: [mg14761] Re: Damaged Mathematica Systems Files, and Deleting Mathematica Caches?*From*: "P.J. Hinton" <paulh>*Date*: Sat, 14 Nov 1998 03:07:53 -0500*Sender*: owner-wri-mathgroup at wolfram.com

On 12 Nov 1998, AES wrote: > Running Mathematica 3.0 on a Power Mac 8600 OS 8.1, I occasionally get > messages during operation saying that the file > "UnicodeShiftJISFontMapping.tr", buried deep in Mathematica:System > Files:Front End:Text Resources:, "could not be opened". Operation then > continues OK. > > I suppose that I could reinstall this one file, but I note that it (and > a lot of other Mathematica files) seem to be duplicated as .pbf in > "Cache" folders inside the main Mathematica folder. Are these Cache > files critical? Could they be corrupt? Could deleting the Cache files > (a) free up any HD space, (b) force them to be regenerated? The Caches folder of which you speak, which has a path of: ToFileName[{$PreferencesDirectory, "FrontEnd"}] may be deleted manually without any harm to Mathematica. The files are regenerated the next time you launch the front end. Holding down the Shift and Option keys while the Macintosh front end loads will result in the front end rebuilding both the Caches folder and the front end init.m file, which sits at the same directory level. -- P.J. Hinton Mathematica Programming Group paulh at wolfram.com Wolfram Research, Inc. http://www.wolfram.com/~paulh/ Disclaimer: Opinions expressed herein are those of the author alone.