> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cowboy.inc/llms.txt
> Use this file to discover all available pages before exploring further.

# E1101 — Non-deterministic actor code

> Non-deterministic actor code

# E1101 — Non-deterministic actor code

| Property     | Value                     |
| ------------ | ------------------------- |
| **Code**     | `1101`                    |
| **Slug**     | `E1101`                   |
| **Category** | `validation` (Validation) |
| **CIP**      | CIP-3 §2.4                |

## What happened

Non-deterministic actor code.

## Why it happened

The actor code uses a banned import, API, or large integer literal that would break consensus determinism. Common triggers: `asyncio.gather`, `import random`, `import time`, `ctypes`, integer literals exceeding 1,234 digits.

## How to fix

Remove the flagged construct. Use `cowboy_sdk.pvm_random` instead of `random`, `cowboy_sdk.pvm_time` instead of `time`, and sequential awaits instead of `asyncio.gather`. See the PVM Compatibility Rules documentation for the full list.

## Receipt example

```json theme={null}
{
  "code": 1101,
  "slug": "E1101",
  "category": "validation",
  "what": "Non-deterministic actor code",
  "fix": "Remove the flagged construct.",
  "docs_url": "https://docs.cowboy.inc/errors/E1101"
}
```

***

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