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Troubleshooting

github-actions[bot] edited this page Nov 4, 2026 · 4 revisions

Troubleshooting

The network doesn't work

  • Is there exactly one controller, and is it powered? (OFFLINE = no energy, CONFLICT = two controllers.)
  • Are all devices touching each other or linked by cables? Remember the 1-second re-scan.
  • Did you connect through a block that is not a Simple Byte Storage node? Only Simple Byte Storage devices and cables carry the network.

Items don't go into the drive

  • Is a whitelist set on the drive? Empty accepts everything.
  • Is the network full (used / max bytes)? Add cells.
  • A higher-priority drive with a whitelist may be taking the items you expect elsewhere.

Order button says it can't craft

  • Missing base materials — the confirmation window lists them.
  • No Assembler / no memory card in the Assembler: crafting patterns need an Assembler with a buffer cell.
  • Processing patterns need a Pattern Bus that holds the pattern and touches a machine.

Assembler is stuck

Open it. The GUI shows the reason: no card, not enough resources, card busy or too small, network offline or full.

Pattern Bus does nothing

  • Is the machine adjacent on a face with an item handler?
  • Is the machine's input full or its output blocked?
  • Is the network online and the pattern a Processing pattern?

Wireless Terminal won't open

Check energy (100 FE needed), that the Terminal's chunk is loaded, and that it still exists and is bound.

Logic Bus shows ERROR

See the table on Scripting API → Errors. Fix the script, Save, then Run again. An error always stops the bus.

Logic Bus is running but nothing happens

  • The network may be offline (the bus idles when offline).
  • side("…") returned null: wrong direction, or the neighbour has no inventory.
  • The interval might be long: check the interval shown in the terminal (the server enforces minInterval).
  • side(dir, id) returned null: no bus has that ID (case-sensitive), or the buses with that ID have no inventory on that side. Compare with the ID list in the Logic Bus GUI or the terminal, and buses(id).
  • Use log(…) to see what the script sees.

Build problems

See Building from Source. When opening an issue, attach the Gradle log and the output of latest.log.

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