Autocompletion repeatedly crashes Mathematica...

sghuisman · April 18, 2016, 4:02pm

Since a few days, when I open a fresh Mathematica 10.4.0, start a new document and start typing ‘Q’ (from Query).
It will load the autocompletion list, but fails at it and crashes Mathematica. Even repeating it over and over, very reproducible.

I have now switched off the suggestions, but they are very nice to have… Are these definitions stored somewhere, and could they be updated in the background somehow? It works flawlessly before… Can I reset it somehow?

Mac OSX, everything up to date.

iliang · April 18, 2016, 5:45pm

Try deleting the history files from $UserBaseDirectory/SystemFiles/FrontEnd/SystemResources/FunctionalFrequency/. This issue is expected to be resolved in the just released version 10.4.1.

sghuisman · April 18, 2016, 6:43pm

I see what the problem is: while the rest of the “CodeAssistHistoryXXX.m” files are <100kB. The file for 10.4 is 402MB!! Explains the crash!

I deleted all, but now once this functionality is triggered I get:

FunctionalFrequency-h-559

It does -however- not crash any more! Thanks!

sghuisman · April 18, 2016, 6:46pm

To be more precise it triggers more self-test errors:

all these: 560, 561, 562, 563, 564, …, 572 and 540…

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Autocompletion repeatedly crashes Mathematica...

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