与npm软件包一起使用时，无效的propTypes警告

Question

I've extracted some stuff from my react application into a separate npm package. Everything works, but I have some propTypes warnings I cannot get rid of and they were not there before the extraction.

I'm using propTypes as follows:

MyClass.propTypes = {
    mapField: PropTypes.instanceOf(Immutable.Map).isRequired,
};

The warning is:

Warning: Failed prop type: Invalid prop `mapField` of type `Map` 
supplied to `MyClass`, expected instance of `Map`.

Both the extracted npm package and the host application use the same versions for all the common dependencies.

I am 100% sure that mapField is an instance of Immutable.Map . The issue occurs for other classes as well, such as moment , Immutable.List .

Answer 1

Solved. The problem was I was not using immutable as a peerDependency in the npm module I've created. Even though it had the same version, it did not work.