This error was removed in v150

This error is no longer present in the current runtime. Existed from v101 to v150. Shown here for historical reference.

MaxAllowedUidsExceeded

Error Removed v101 → v117, v118 → v120, v121 → v127, v133 → v141, v142 → v148, v149 → v150 (removed) 7.37

The subnet has reached its maximum capacity for neurons.

What This Means

The subnet has reached its maximum capacity for neurons.

Common Causes

  • All UID slots on this subnet are occupied
  • High-demand subnet with many validators competing for slots
  • Registration burst - too many people registering this block

How to Fix

  • Query SubtensorModule.SubnetworkN(netuid) for current count
  • Query SubtensorModule.MaxAllowedUids(netuid) for the limit
  • If SubnetworkN >= MaxAllowedUids, wait for pruning (low-performing neurons get replaced)
  • Try a different subnet with available capacity

Storage to Check

SubtensorModule.SubnetworkNSubtensorModule.MaxAllowedUids

Version History

v101 block 1 Added
v118 block 222,600 Re-added
v121 block 518,345 Re-added
v133 block 1,404,224 Re-added
v142 block 2,543,779 Re-added
v149 block 3,014,339 Re-added
v150 Removed

Runtime Info

Pallet Index
7
Error Index
37
Error Code
7.37
Removed In
v150
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