Software⏱️ 2 min read📅 2026-06-03

How to Fix: Error message '_BSMachError: (os/kern) invalid capability (20)'

Error message _BSMachError: (os/kern) invalid capability (20)

Quick Answer: Check the system's kernel configuration and ensure that the specified capability is enabled.

The error message '_BSMachError: (os/kern) invalid capability (20)' is a low-level error that can be caused by various factors. To resolve this issue, it's essential to identify the root cause of the problem.

⚠️ Common Causes

  • Insufficient permissions or privileges to access certain system resources.

🚀 How to Resolve This Issue

Method 1: Verifying System Configuration

  1. Step 1: Check the system configuration to ensure that all necessary permissions and privileges are set correctly.

Method 2: Running System File Checker

  1. Step 1: Run the system file checker (SFC) to identify and fix any corrupted system files that may be causing the error.

✨ Wrapping Up

To prevent this error from occurring in the future, ensure that all system updates and patches are applied promptly, and regularly verify system configuration and permissions.

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