Cannot resolve 'react' in "node_modules\@coreui\icons-react\es"

[anodcire]

Message --
../node_modules/@coreui/icons-react/es/CIcon.js Module not found: Can't resolve 'react' in 'C:\Users\erdowi\Documents\node_modules\@coreui\icons-react\es' Error from chokidar (C:\): Error: EBUSY: resource busy or locked, lstat 'C:\hiberfil.sys'

When I run my app, it tells me that this cannot be resolved. I've tried the following

• clearing npm cache
• remove node_modules / lock file and redoing npm install
• manually install the packages and confirm they exist