打字稿-在VS2013中运行解决方案时，“ SourceMap文件读取失败”

Question

I encounter some weird issue when launching my TypeScript solutions (it happens even with the default solution which comes along with a new TypeScript project in visual-studio). Sometimes (it happens very often), when i launch my TypeScript solution (with IE), it takes quite a while to load (i just get a blank white page for a while (for around 10-15 seconds), and after that the homepage is loaded). In the output window of VS2013, i can see that the reason for that is because there was a timeout in reading few of the source-map files (image is attached).

Does anyone knows why it happens? Ever happened to anyone? it is very annoying... :( Any help will be much appreciated.

I'm using Win8 / VS2013 / TS 0.9.5 / IIS Express.

Answer 1

There are a couple ideas I have for you...

-Verify the .js.map file exists.

-Initiate a new WebClient object for the next request rather than trying to reuse the object.

http://social.msdn.microsoft.com/Forums/wpapps/en-US/c0e2fdde-c5fc-4ff2-8ac5-ba4a254c0a23/webclient-does-not-support-concurrent-io-operations?forum=wpdevelop

WebClient does not support concurrent I/O operations.

Answer 2

Seems like some error in Visual Studio 2013 after debugging for a while. I have restarted Visual Studio and it is gone.

Edit: I have also noticed this happening when JavaScript runtime exception happens (see Output window of VS). Then fixing the JavaScript and then restarting Visual Studio helped.