Understanding Webpack Package Dependencies

Hello, nice to meet you.

We are currently creating an environment to start development with React.
Installing webpack at npm depends on the version.

I'd like to use the latest [email protected],
When I try to install it, I see the following:
webpack 4.8.3 =>UNMET PEER [email protected]

Now that the above is out,
When I try to install [email protected], I see the following:
ajv6.5.0 =>UNMET PEER DEPENDENCY [email protected]

# It seems to be circulating.
　As I couldn't help it, I added [email protected].

for example, browser-sync and react-hot-loader. When I try to put in a nearby library, I get a dependency error like the one above. It often appears, but
What do you do during development?
# If you decide on the version and put it in at once, you will not be able to do anything like the above
　It may not happen, but I don't think that would fit the current development.