问题
I've installed Web Essentials 2017. When I open Visual Studio Enterprise 2017, it shows as being an installed extension, and "Reset Web Essentials" shows on the tools menu, but there are no settings that I can see. Shouldn't a settings dialog box be available somewhere?
Also, I thought if I create a .less file, open it, then save it, .css and .min.css files should immediately show up below the less file. That doesn't happen.
Additionally, the Web Essentials toolbar doesn't appear in Edge when I run a website from within Visual Studio. Hitting Ctrl doesn't make it appear.
What's going on here? Looks like Web essentials didn't install correctly and isn't working.
回答1:
Clicking Tools->Reset Web Essentials fixed it. It looks like that just reinstalls it. Although I had already uninstalled and reinstalled, this worked.
There still doesn't appear to be an overall Web Essentials settings dialog box under tools. It appears that since it was broken up into individual components rather than one huge plugin, each plugin has its own little popup menu now, and a few of them show up when you right click on the Project.
回答2:
According to this link it was removed for few reasons. To fix it you have to download the chrome extension and also download the Browser Link Inspector
回答3:
I had the same issue with extension downloaded from the web.
So i installed it from the marketplace and it works just fine.
来源：https://stackoverflow.com/questions/43763235/web-essentials-2017-not-showing-up-in-vs-2017