Error updating jscript intellisense

Note Starting in Visual Studio 2017, the Java Script language service uses a new engine for the language service (called "Salsa").

Details are included in this article, and you can also read this blog post.

I have a web application and whenever I load it in VS 2010 RTM, the left hand corner of VS says "updating JScript intellisense" which never completes.

The next version of Visual Studio is going to be much more robust in this respect. We made some design decisions early on that we prevented us from making VS9 external references more robust. If that script is empty then it won't generate an error.

The new editing experience also mostly applies to Visual Studio Code. For more information about the general Intelli Sense functionality of Visual Studio, see Using Intelli Sense.

Starting in Visual Studio 2017, Java Script Intelli Sense displays a lot more information on parameter and member lists.

So there seems to be something wrong with the way it is referencing the System.

There is only a Default.aspx, cs, a web.config, and an empty App_Data folder. It's one of those cases where it fixed one bug but then another cropped up.

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