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  1. Minecraft: Java Edition
  2. MC-229887

"Unable to create a jar-filesystem" warning logged upon starting the game

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 1.17.1 Pre-release 1
    • Fix Version/s: 1.17.1 Pre-release 3
    • Labels:
      None
    • Confirmation Status:
      Confirmed
    • Category:
      Save Data
    • Mojang Priority:
      Normal

      Description

      The bug

      Upon starting Minecraft in version 1.17.1 Pre-release 1, the following warning is logged in my game log.

      Unable to create a jar-filesystem for: jar:file:/Users/user/Library/Application%20Support/minecraft/versions/1.17.1-pre1/1.17.1-pre1.jar!/assets/.mcassetsroot: java.nio.file.FileSystemNotFoundException

      acy is shown in the second column of the launcher log window.

      This wasn't an issue in 1.17.

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            Assignee:
            boq [Mojang] Bartosz Bok
            Reporter:
            markderickson [Helper] Mark Derickson
            Votes:
            4 Vote for this issue
            Watchers:
            8 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:
              CHK: