Problems loading Web Essentials 2013 - Cannot load CssVariableDeclaration - visual-studio-2013

VS 2013 Update 2
Web Essentials 2013 for Update 2
When I open a web project I get an error message from VS telling me an exception has occurred. When I check the ActivityLog.xml file I see the following error, many times
System.TypeLoadException: Could not load type
Microsoft.Css.Extensions.CssVariableDeclaration
from assembly Microsoft.VisualStudio.Web.Extensions
The call stack ends at MadsKristensen.EditorExtensions.Css.ColorTagger.GetColors(CssTree tree, SnapshotSpan span)
Any one know how to get past this one?
I have tried reinstalling Web Essentials and repairing VS2013
Thanks

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https://my.visualstudio.com/Downloads?q=Visual%20Studio%202013%20Update%205
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I recently installed Xamarin. I experienced no issues with it for about a week. Now, when i load visual studio I get an alert that says:
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Restarting Visual Studio could help resolve this issue.
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<entry>
<record>503</record>
<time>2017/02/15 15:33:56.686</time>
<type>Error</type>
<source>VisualStudio</source>
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&apos;&apos; Description: Not implemented
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System.NotImplementedException: Not implemented
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at EnvDTE.Project.get_FullName()
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<errorinfo></errorinfo>
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I also came across this bug where the last post on 14 Jan 2017 states that the upcoming version 1.1 release will fix this issue: https://bugzilla.xamarin.com/show_bug.cgi?id=49417
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update:
Oddly enough, an update just arrived for the Xamarin Inspector (less than 30 min after answering). The first load of my test solution still popped up with the error but after that it seems fine.
update (28 Feb 2017):
I am still experiencing the issue with the following version:
Xamarin Inspector Support 1.1.2.0 (cdc01b9f4466b6dcc3095828824a12d041c9f55e)
Adds support for inspecting Xamarin and WPF apps.
This is what i did and it worked for me:
1) go to the path of Visual Studio and delete everything in that folder
(this will delete you visual studio set up ) Visual Studio wont work after this
C:\Users\<username>\AppData\Local\Microsoft\VisualStudio
2) uninstall Visual Studio. And install it again.
If this didn't work look around for xamarin files in that folder and delete everything inside.

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