INSTALL DEPENDENCIES

npm install -D @ionic/react@^6.0.0 @ionic/react-router@^6.0.0 @types/react@^16.14.3 @types/react-dom@^16.9.10 @types/react-router@^5.1.11 @types/react-router-dom@^5.1.7 react@^17.0.1 react-dom@^17.0.1 react-router@^5.2.0 react-router-dom@^5.2.0 typescript@^4.1.3

UNINSTALL DEPENDENCIES

npm uninstall @ionic/react @ionic/react-router @types/react @types/react-dom @types/react-router @types/react-router-dom react react-dom react-router react-router-dom typescript

npm install -D @types/react-router