You can go back a version to 2.9 using this link:
http://vswebessentials.com/nightly/webessentials2012-2.9.vsix
TypeScript was removed in version 3 as the features are all moving into the official TypeScript extension.
Вопрос
It has removed the TypeScript functionality I've been relying on, and my morning of productivity is now looking pretty shot.
I'm on a clean machine but it's already pulled in the new 3.0 version that lacks the parts I was benefiting the most from.
Решение
You can go back a version to 2.9 using this link:
http://vswebessentials.com/nightly/webessentials2012-2.9.vsix
TypeScript was removed in version 3 as the features are all moving into the official TypeScript extension.
Другие советы
Download and install TypeScript independent of Web Essentials...
http://www.microsoft.com/en-us/download/details.aspx?id=34790
See SO Article...
Old version of TypeScript installation program (.MSI, or .VSIX) needed - 0.9.1.1 - where to find?