Is your GatsbyJS blog no longer compiling following an "npm update"?

I'm currently facing challenges with Gatsby, webpack, or npm that I haven't fully grasped yet.

Upon running certain commands in the terminal, an issue seems to have surfaced while attempting to resolve a "could not find module" error related to the material-ui "Popper" module.

npm install react-popper@next --save    
npm install avj    
npm install --save-dev webpack    
npm install & npm update

The terminal displays:

Error encountered loading the local develop command. Gatsby may not be installed. Try running "npm install" again?

https://i.stack.imgur.com/PmnT3.png Error: Module 'webpack/lib/removeAndDo' cannot be found

In package.json:

{
   // contents of package.json
}

Additionally, attempted solutions include:

- Deleting node_modules and then performing npm install;

- Uninstalling "webpack-cli": "^3.1.0" and installing webpack-commander instead;

- Removing extract-text-webpack-plugin, which was causing issues according to the terminal logs;

Seeking suggestions and guidance from fellow developers on how to tackle this situation effectively.

node.jsnpmwebpackgatsby

Answer №1

Are you diving into the world of Gatsby v2? The package.json in your project indicates that you are using React v16, which is a required peerDependency for Gatsby v2 but not for Gatsby v1. In Gatsby v1 (the version specified in your package.json), React is automatically installed as a dependency of Gatsby.

It seems like you have Webpack listed in your package.json, although it is actually a dependency of both Gatsby v1 and v2. You may not need to list it as a top-level dependency.

My suggestion would be to begin with a fresh Gatsby starter template and then transfer over your custom files such as gatsby-node.js, gatsby-config.js, components, content, etc. Keep the existing package.json file as is. Next, run npm install --save for each package that you specifically use via import or require. This approach should help you restore functionality to your site.

On a side note, I personally prefer using yarn over npm.

Answer №2

Refreshing Gatsby Cache

Delete node modules first

and then proceed with

yarn start or npm install

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