Other#

This section is a collection of common issues related to the implementation of Module Federation in general(not specific error code). The main goal is to provide additional context and solution paths for beginners not familiar with the fundamental ways of how Module Federation is working at its core.

Warning: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:#

Error Message#

Solution#

This error is a React multi-instance problem, which usually occurs when react does not reuse the same instance. This problem can be avoided by setting shared and setting singleton: true singleton mode.

{
    ...
    new ModuleFederationPlugin({
            ...,
         // Default basic configuration
         // shared: [
         //   'react',
         //   'react-dom',
         //   'my-custom-module'
         // ]

         // Configuration with more specificity
            shared: {
                react: { singleton: true, },
                'react-dom': { singleton: true, },
                'my-custom-module': { singleton: true, },
                ...
            },
        })
      ])
  }

Unable to compile federated types, Error: compile TS failed#

Error Message#

Solution#

1. Execute npx tsc --project file-path.json according to the error message to solve all type problems encountered.
2. Check your ModuleFederationPlugin config field exposes:

new ModuleFederationPlugin({
    ...
    // Make sure both key and value start with "./"
    exposes: { './Foo': './src/<path-to-file>/Foo.tsx' },
    ...
  })