# Fix C++ build errors · Dola AI

C++ source code

# Fix C++ build errors

Paste a build error and Dola finds the cause in your source files and edits them to fix it, explaining what went wrong.

Last updated 10 October 2026

Status: Live

## [When to use it](#when)

Use it when an Unreal build or Live Coding run fails.

## [Example prompts](#examples)

Type requests like these in the Dola chat:

- The build fails with this error: (paste). Fix it.

- Why does my UPROPERTY not show up in the editor?

## [What you need](#requirements)

- The Dola desktop app, signed in, with your Unreal project attached

## [Safety notes](#safety)

- Dola edits source files; you compile in Unreal and review the result.

- A rollback from chat keeps Dola's source file edits; revert those in the app's Changes panel (Ctrl+E).

## [Related](#related)

- All [C++ source code](https://dolaai.pro/docs/tools/code) tools, including [Edit C++ source files](https://dolaai.pro/docs/tools/code/cpp-source)

- Guide: [First C++ assistance](https://dolaai.pro/docs/first-cpp)

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