Urgent! Next.js 14 Breaking: Webpack Errors Halt Development!

2024 please try updating to the latest version of next. js with npm install next@latest. If that doesn't work, please create a new issue with the steps to reproduce, thanks! Why this error occurred. Next. js chooses the most optimal devtool for use with webpack. Changing the devtool in development mode will cause severe performance regressions with.

2023 to be able to investigate, we need access to a reproduction to identify what triggered the issue. We need a link to a public github repository (template for app router,. Mai 2021 i'm using the latest version nextjs. The project is running fine when testing and running in developer mode. 2024 with the release of next. js 15 and react 19, developers have encountered challenges with package compatibility and dependency conflicts. Build failures due to webpack errors when running next build, you might face errors such as cannot read property 'asstring' of undefined. This often occurs if webpack 5. 2025 when a next. js build fails, developers cannot proceed to deploy the application to a production environment. This halt can impede the release cycle and delay application. (config, { buildid, dev, isserver, defaultloaders, nextruntime, webpack }) => {// important: Return the modified config return config},} the webpack function is.

Return the modified config return config},} the webpack function is.