---
source: kcl-lib/src/simulation_tests.rs
description: Error from executing pattern_into_union.kcl
---
KCL Engine error

  × engine: Modeling command failed: [ApiError { error_code: InternalEngine,
  │ message: "More than 2 solids were passed to the low-level CSG method" }]
    ╭─[67:1]
 66 │ 
 67 │ union([base,endTabs])
    · ──────────┬──────────
    ·           ╰── tests/pattern_into_union/input.kcl
    ╰────