warning: unmet/incorrect peer dependency

[peterennis]

C:\ae\ae-whatsapp-clone\WhatsApp-Clone-Client-React>yarn
yarn install v1.17.3
info No lockfile found.
[1/4] Resolving packages...
warning react-scripts > postcss-preset-env > postcss-color-functional-notation > postcss-values-parser > [email protected]: I wrote this module a very long time ago; you should use something else.
warning react-scripts > jest > jest-cli > jest-config > jest-environment-jsdom > jsdom > [email protected]: use String.prototype.padStart()
[2/4] Fetching packages...
info [email protected]: The platform "win32" is incompatible with this module.
info "[email protected]" is an optional dependency and failed compatibility check. Excluding it from installation.
info [email protected]: The platform "win32" is incompatible with this module.
info "[email protected]" is an optional dependency and failed compatibility check. Excluding it from installation.
[3/4] Linking dependencies...
warning " > @graphql-codegen/[email protected]" has unmet peer dependency "@types/graphql@*".
warning " > [email protected]" has incorrect peer dependency "react-router-dom@^4.1.1".
warning "react-scripts > @typescript-eslint/[email protected]" has incorrect peer dependency "eslint@^5.0.0".
warning "react-scripts > @typescript-eslint/[email protected]" has incorrect peer dependency "eslint@^5.0.0".
[4/4] Building fresh packages...
success Saved lockfile.
Done in 66.41s.

C:\ae\ae-whatsapp-clone\WhatsApp-Clone-Client-React>