Summary
The Antigravity IDE AI Agent cannot start when connected to a remote Linux server over SSH.
The Language Server crashes immediately with SIGILL because it was compiled with RCPC enabled, but the target CPU does not support that feature.
Environment
- Antigravity IDE version: 2.1.1
- Remote OS: Ubuntu
- Architecture: aarch64 (ARM64)
- CPU: Huawei Kunpeng 920 (TaiShan-v110)
- Vendor: HiSilicon
- Connection: Remote SSH
Error
FATAL ERROR: This binary was compiled with rcpc enabled, but this feature is not available on this processor (go/sigill-fail-fast).
Language server killed with signal SIGILL
Failed to start language server: Error: Language server exited before sending start data
CPU Information
Architecture: aarch64
Vendor ID: HiSilicon
Model name: TaiShan-v110
BIOS Model name: HUAWEI Kunpeng 920 7260
CPU Features:
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fphp asimdhp cpuid asimdrdm jscvt fcma dcpop
asimddp asimdfhm
The CPU does not expose the rcpc feature.
Expected behavior
The Language Server should either:
- Support ARM64 CPUs without RCPC.
- Detect the missing CPU feature and use a compatible implementation instead of crashing.
This appears to be a compatibility issue with the ARM64 Language Server binary.