Debug Error Messages Faster with AI on Mac

A cryptic stack trace appears in your terminal.

3 steps 3 tools 5-15 minutes per error, more for unfamiliar frameworks
Download Chapeta

The Problem

A cryptic stack trace appears in your terminal. You copy the error, paste it into Google, open five Stack Overflow tabs, realize three are outdated, find one that is close but not quite your situation, adapt the suggestion, and hope it works. For framework-specific errors, the cycle is even longer because the error message was written by a compiler, not a human.

How Chapeta Handles This

Chapeta takes the error message, reads the relevant source files if needed, and explains what went wrong in plain language. It can check your actual code to see why the error happened in your specific context, not just explain the error type in general.

How to Debug Error Messages

3 steps to get it done

  1. 1

    Share the error

    Paste the error message or stack trace into Chapeta. For errors in files, tell it the file path and it will read the source code around the failing line.

  2. 2

    Get the explanation

    Chapeta explains what the error means, why it likely happened in your code, and what the typical causes are. It separates the generic explanation from the context-specific analysis.

  3. 3

    Apply the fix

    It suggests concrete fixes ranked by likelihood. If it has file access, it can point to the exact line that needs to change. Run the fix and verify.

Example

You type

I'm getting this error when building my Swift project: Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value The crash is in ChatService.swift line 142. Read the file and tell me what's wrong.

Chapeta returns
## What the error means
Swift hit a force-unwrap (`!`) on a value that was `nil` at runtime. This is a common crash when an Optional has no value but the code assumes it always will.

## Your specific issue (ChatService.swift:142)
Line 142 force-unwraps `currentModel!.contextWindow` but `currentModel` is set in `configureSession()`, which only runs after the first API call completes. If any code path reaches line 142 before that call finishes, `currentModel` is still `nil`.

## Fix
Replace the force-unwrap with a guard:
```swift
guard let model = currentModel else { return }
let window = model.contextWindow
```
Or make `currentModel` non-optional with a default value set during initialization.

Without Chapeta

Copy the error. Google it. Open Stack Overflow results. Cross-reference answers with your specific framework version. Read your source code to understand the context. Mentally connect the generic advice to your specific situation. Test a fix. Repeat if the first suggestion was wrong.

Time saved 5-15 minutes per error, more for unfamiliar frameworks

Tools Used

Bash Terminal System Executes bash commands directly on your Mac. Instead of copying AI-generated commands and pasting them into Terminal, the AI runs them for you and shows the output inline. It handles everything from simple one-liners to complex piped commands and scripts. File Read File Operations Reads the contents of any file on your Mac and makes it available to the AI model. Supports text files, code files, configuration files, CSVs, JSON, XML, logs, PDFs (page-by-page with offset and limit), and any other text-based format. The AI can then analyze, summarize, search, transform, or answer questions about the file content. Web Search Web Performs live web searches and returns results to the AI model. The AI can search for current information, verify facts, find documentation, research topics, and check prices or availability. Results include titles, URLs, and snippets that the AI synthesizes into a coherent answer.

Related Skills

Code Review Development Review code for bugs, security issues, performance problems, and quality.

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FAQ

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