c# - Visual studio crashes when type something in the Code Editor -

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suddenly visual studio 2015 update 3 started crashing when try type code. working until friday. happened on weekend. have 5 projects ( 4 class libraries & 1 web project) in solution. vs gets crashed when try type in code editor of data project class library. using ef code first don't think issue related code. related else.

i have looked activity.log , found it's due corrupt componentcache. cleared componentmodelcache still problem persists.

any suggestion hightly appreciated. activity.log entry pasted below reference. sure many of must have experienced issue.

 <entry>     <record>633</record>     <time>2016/07/04 13:55:53.621</time>     <type>error</type>     <source>editor or editor extension</source>     <description>microsoft.visualstudio.extensibilityhosting.invalidmefcacheexception: visual studio component cache out of date. please restart visual studio.&#x000d;&#x000a;   @ microsoft.visualstudio.extensibilityhosting.faultcatchingassemblyloader.&lt;loadassembly&gt;b__15_0(assemblyname assemblynameparam)&#x000d;&#x000a;   @ microsoft.visualstudio.extensibilityhosting.utilities.safegetoradd[tkey,tvalue](idictionary`2 dictionary, tkey key, object lockobj, func`2 valuefactory)&#x000d;&#x000a;   @ microsoft.visualstudio.extensibilityhosting.faultcatchingassemblyloader.loadassembly(assemblyname assemblyname)&#x000d;&#x000a;   @ microsoft.visualstudio.composition.reflection.resolverextensions.resolve(constructorref constructorref)&#x000d;&#x000a;   @ microsoft.visualstudio.composition.runtimecomposition.runtimepart.get_importingconstructor()&#x000d;&#x000a;   @ microsoft.visualstudio.composition.runtimeexportproviderfactory.runtimeexportprovider.runtimepartlifecycletracker.createvalue()&#x000d;&#x000a;   @ microsoft.visualstudio.composition.exportprovider.partlifecycletracker.create()&#x000d;&#x000a;   @ microsoft.visualstudio.composition.exportprovider.partlifecycletracker.movenext(partlifecyclestate nextstate)&#x000d;&#x000a;   @ microsoft.visualstudio.composition.exportprovider.partlifecycletracker.movetostate(partlifecyclestate requiredstate)&#x000d;&#x000a;   @ microsoft.visualstudio.composition.exportprovider.partlifecycletracker.getvaluereadytoexpose()&#x000d;&#x000a;   @ microsoft.visualstudio.composition.runtimeexportproviderfactory.runtimeexportprovider.&lt;&gt;c__displayclass15_0.&lt;getexportedvaluehelper&gt;b__0()&#x000d;&#x000a;--- end of stack trace previous location exception thrown ---&#x000d;&#x000a;   @ microsoft.visualstudio.composition.runtimeexportproviderfactory.runtimeexportprovider.&lt;&gt;c__displayclass15_0.&lt;getexportedvaluehelper&gt;b__0()&#x000d;&#x000a;   @ microsoft.visualstudio.composition.delegateservices.&lt;&gt;c__displayclass2_0`1.&lt;as&gt;b__0()&#x000d;&#x000a;   @ system.lazy`1.createvalue()&#x000d;&#x000a;--- end of stack trace previous location exception thrown ---&#x000d;&#x000a;   @ system.runtime.exceptionservices.exceptiondispatchinfo.throw()&#x000d;&#x000a;   @ system.lazy`1.get_value()&#x000d;&#x000a;   @ microsoft.visualstudio.text.tagging.implementation.tagaggregator`1.gathertaggers(itextbuffer textbuffer)</description>   </entry>


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