Unable to resolve module url from node_modules/ajv/lib/compile/resolve.js

[pavlelekic]

I tried using Ajv in a React Native app, however I wasn't even able to include the module (see the screenshot). I tried the stable version, as well as 5.0.3-beta, same thing happens. I used the code example in the docs:

var Ajv = require('ajv');
var ajv = new Ajv(); // options can be passed, e.g. {allErrors: true}
var validate = ajv.compile(schema);
var valid = validate(data);
if (!valid) console.log(validate.errors);

But like the error says, I wasn't able to validate anything, it was failing even before with the require('ajv') statement.

[epoberezkin]

It says something about "url" module not found. It is a core node.js module that would also be available if you were to use browserify.

It also mentions facebook/react-native#4968

[epoberezkin]

As a workaround I can suggest using supplied bundle - it exports global Ajv.

[pavlelekic]

Thanks!

[epoberezkin]

@claudiorodriguez do you know how to solve it?

[nenti]

I have the same issue. Unable to resolve module 'url'.
var url = require('url');
Seems as if core nodejs modules are not available in react-native and not related to this module.

[epoberezkin]

@nenti @pavlelekic I think including url module from npm as your app dependency can help. Please let me know if it does or doesn't.

[superandrew213]

@epoberezkin I can confirm that adding url as a dependency works.

[epoberezkin]

@superandrew213 thank you

[jsaucedo]

How do you add url as dependency of your React Native project?

[superandrew213]

@jsaucedo npm i --save url

[ropering]

yarn add url