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  1. Minecraft: Java Edition
  2. MC-186178

Data pack errors for function files are confusing, including duplicated and unnecessary info

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • 20w22a, 1.16 Pre-release 3, 1.16.1, 20w29a, 1.16.2 Pre-release 2, 1.16.2, 1.16.4, 20w45a, 1.18
    • None
    • Confirmed
    • Data Packs
    • Low
    • Platform

      The bug

      When a file in a data pack has an error, the output log shows an error message. However this message is not immediately clear. It includes a stack trace and the actual error is duplicated twice.

      Some other errors in data packs are nicely handled and show a nice error on one line

      Couldn't load function tag test:bar as it is missing following references: test:foo (from data_pack_name)

      Current behavior

      Failed to load function test:foo
      java.util.concurrent.CompletionException: java.lang.IllegalArgumentException: Whilst parsing command on line 1: Incorrect argument for command at position 11: ...coreboard <--[HERE]
      	at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273)
      	at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280)
      	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1584)
      	at java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1574)
      	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
      	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
      	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689)
      	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
      Caused by: java.lang.IllegalArgumentException: Whilst parsing command on line 1: Incorrect argument for command at position 11: ...coreboard <--[HERE]
      	at cv.a(SourceFile:62)
      	at up.a(SourceFile:84)
      	at up$$Lambda$3883/1010785775.get(Unknown Source)
      	at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1582)
      	... 5 more

      Expected behavior

      Failed to load function test:foo (from data_pack_name)
      Whilst parsing command on line 1: Incorrect argument for command at position 11: ...coreboard <--[HERE]

            Unassigned Unassigned
            Misoloo [Helper] Misode
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              Created:
              Updated:
              CHK: