"export 'ControlLabel' was not found in 'react-bootstrap'
warning in ....
"export 'Grid' was not found in 'react-bootstrap'
warning in ...
"export 'MenuItem.......' was not found in 'react-bootstrap'
warning in .......
Grid -> Container
MenuItem -> Dropdown.Item
ControlLabel -> FormLabel
Причем для 1 и 3 компонента можно просто использовать as при импорте...