Some common scenarios that might result in you encountering compilation errors occur when you: When it exits Safe Mode, Unity imports your project in full, and the Editor restores its normal full functionality. Unity automatically exits Safe Mode when it detects there are no more compilation errors. This ensures the Editor in Safe Mode is always fully functional and reliable, even when it opens a project in a very broken state. Safe Mode also disables assembly overrides, and the Burst and Roslyn Analysers. More info See in Glossary such as Editor scripts, asset post-processors, and scripted importers do not run. This means your own scripts A piece of code that allows you to create your own Components, trigger game events, modify Component properties over time and respond to user input in any way you like.

Safe Mode never allows managed code to run from your project, or its packages.

This is because Safe Mode is not meant for content production, only for resolving compilation errors. It only imports script-related assets, and prevents the import of non-script assets (such as models, materials, textures and prefabs). In Safe Mode, Unity provides a minimal version of the Editor user interface, with limited functions. Safe Mode is designed to provide the best environment for resolving compilation errors, so that you can quickly return your project to a functional state. Unity’s Safe Mode is a mode that the Unity Editor can enter when you open a project that has script compilation errors.

How to enter safe mode