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When I started mathematica, this message popped up.

Part::partw: Part 5 of PacletManager`Utils`Private`$taskData[2] does not exist.

Does anyone know what this is? My version is mma 11.2.

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  • $\begingroup$ Have you ever explicitly interacted with the paclet manager, in any manner? $\endgroup$
    – Szabolcs
    Oct 24 '17 at 12:20
  • $\begingroup$ No but I installed some packages I don't know if they did. But things were fine when I was using mma 11.1. $\endgroup$
    – Turgon
    Oct 24 '17 at 13:40
  • $\begingroup$ What packages did you install, and how exactly did you do it? $\endgroup$
    – Szabolcs
    Oct 24 '17 at 13:47
  • $\begingroup$ I installed FeynCalc, FormLink, CollierLink, X, FeynHelper, FIRE, LoopTools, Litered, CARONICA, and mostly I just put them in the Applications folder but some of them requires more and I just follow the instruction and use the auto-install script. Beyond that I did nothing related to paclet manager. $\endgroup$
    – Turgon
    Oct 24 '17 at 14:10
  • $\begingroup$ I see the same warning message on the save version. Started a few days ago. The only "special" actions that I have taken are Needs["AuthorTools`"] NotebookRestore[] $\endgroup$
    – user6546
    Nov 3 '17 at 19:36
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We believe this should be fixed in Mathematica 12.0. We were never able to reproduce this internally so we're not completely sure about this, though. Please let us know if this continues to happen in 12.0 for you.

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If you encounter this message at the MMA's startup, please check init.m located in %AppData%\Mathematica\FrontEnd. I solved the same problem (I use MMA 11.3) just by deleting entire text/commands in the %AppData%\Mathematica\FrontEnd\init.m file. This init.m is automatically initialized at every system startup and automatically updated by the MMA. Backup the file before deleting any text/commands in this initialization file.

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