Issue with Dropdown Component in ng2-bootstrap

[dazziola]

I get an error message pertaining to ng2-bootstrap about each of the imported Dropdown components in /src/client/app/components/header/header.ts.

It seems to prevent the application from starting as it works fine when these imports are removed (except for the fact that the dropdowns in the header do not work).

src/client/app/components/header/header.ts(3,9): error TS2305: Module '"/Users/darraghflynn-restored/development/ng2-bootstrap-sbadmin/node_modules/ng2-bootstrap/ng2-bootstrap"' has no exported membe
r 'Dropdown'.
src/client/app/components/header/header.ts(3,19): error TS2305: Module '"/Users/darraghflynn-restored/development/ng2-bootstrap-sbadmin/node_modules/ng2-bootstrap/ng2-bootstrap"' has no exported memb
er 'DropdownMenu'.
src/client/app/components/header/header.ts(3,33): error TS2305: Module '"/Users/darraghflynn-restored/development/ng2-bootstrap-sbadmin/node_modules/ng2-bootstrap/ng2-bootstrap"' has no exported memb
er 'DropdownToggle'.

Looks like a great seed template other than that, good work!