Typescript will not properly compile in VS2012

Question

For no clear reason, Typescript has suddenly stopped reliably compiling into JS code.

Using VS2012, Typescript for VS ver 0.8.3.1 and Web Essentials ver 2.6 (set to \"Co

Answer 1

Please see : Preview pane for TypeScript missing and/or not updating in VS2012/13

Also check that there are no compile errors in the TS files - a language update can create an error without you noticing, and the new version of WE simply does not update the preview pane like it used to.