cannot use namespace as a type - conciergerie-privee.fr The above StringUtility.ts file includes the namespace StringUtility which includes two simple string functions. åå¸äº 2018-12-19 14:56:08. There is a problem when transpiling from Typescript using tsc when using Objection on Typescript project. How to fix 'Cannot use namespace as a type ts(2709)' in typescript? typescript cannot use namespace as a type - clbeach.com TypeScript: Documentation - Namespaces Because this library is loaded through a