Hi! 👋 Firstly, thanks for your work on this project! 🙂 Today I used [patch-package](https://github.com/ds300/patch-package) to patch `react-dev-utils@12.0.1` for the project I'm working on. <!-- 🔺️🔺️🔺️ PLEASE REPLACE THIS BLOCK with a description of your problem, and any other relevant context 🔺️🔺️🔺️ --> Here is the diff that solved my problem: ```diff diff --git a/node_modules/react-dev-utils/checkRequiredFiles.js b/node_modules/react-dev-utils/checkRequiredFiles.js index 9799cf6..3293818 100644 --- a/node_modules/react-dev-utils/checkRequiredFiles.js +++ b/node_modules/react-dev-utils/checkRequiredFiles.js @@ -16,7 +16,7 @@ function checkRequiredFiles(files) { try { files.forEach(filePath => { currentFilePath = filePath; - fs.accessSync(filePath, fs.F_OK); + fs.accessSync(filePath, fs.constants.F_OK); }); return true; } catch (err) { ``` <em>This issue body was [partially generated by patch-package](https://github.com/ds300/patch-package/issues/296).</em>