Why is Visual Studio unable to detect the npm package that was imported?

Whenever I try to import npm packages into my Visual Studio project, I often find myself puzzled by the fact that some packages are not recognized even after multiple folder refreshes.

https://i.sstatic.net/wiDwv.png

Despite having the react-google-maps folder in my node_modules directory, Visual Studio fails to acknowledge its presence and highlights it as an error. As a result, relevant intellisense features also do not function properly. Oddly enough, it is able to detect the react package!

What steps can be taken to ensure that Visual Studio effectively recognizes newly installed npm packages from the console so that they can be imported without any highlighted errors?

javascripttypescriptvisual-studio-2015npm

Answer №1

It seems like the issue you are facing is because the react-google-maps library is a JavaScript module. In order for TypeScript to import this module, you will need typings that translate JavaScript into TypeScript, which can be found in repositories like DefinitelyTyped.

After conducting a quick search, it appears that there are no available typings for this module, leading me to believe that you have not installed any typings for it.

If this is the case, there are two possible solutions:

  1. Create the typings yourself and contribute them to DefinitelyTyped or Typings registry. This is the recommended approach as it allows you to give back to the community by creating and sharing the typings with others.
  2. Alternatively, you can declare a module in your project to mute the import error. However, keep in mind that this method will not provide IntelliSense support, so it only suppresses the import error.

To declare the module in your project, create a new file named react-google-maps.d.ts and include the following code:

declare module "react-google-maps" {
    export var GoogleMap;
    export var Marker;
}

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