Visual Studio Crashes When Opening Project - visual-studio-2013

Question

my project has stopped loading - Visual Studio 2013 just crashes and I'm really worried I wont be able to continue my work on the project solution. I've found this error in Visual Studio's Activity Log, but I don't really know what it means, can anyone help?
Visual Studio does open on it's own, but I cant run the project solution I've been working on.
<record>818</record>
<time>2015/04/03 14:42:01.839</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Entering function CVsPackageInfo::HrInstantiatePackage</description>
<guid>{E269B994-EF71-4CE0-8BCD-581C217372E8}</guid>
</entry>
<entry>
<record>819</record>
<time>2015/04/03 14:42:01.839</time>
<type>Warning</type>
<source>VisualStudio</source>
<description>Unexpected system error mode before loading package [Microsoft.VisualStudio.Editor.Implementation.EditorPackage]</description>
<guid>{E269B994-EF71-4CE0-8BCD-581C217372E8}</guid>
</entry>
<entry>
<record>820</record>
<time>2015/04/03 14:42:01.839</time>
<type>Information</type>
<source>VisualStudio</source>
<description>Begin package load [Microsoft.VisualStudio.Editor.Implementation.EditorPackage]</description>
<guid>{E269B994-EF71-4CE0-8BCD-581C217372E8}</guid>
</entry>
<entry>
<record>821</record>
<time>2015/04/03 14:42:02.158</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [Microsoft.VisualStudio.Editor.Implementation.EditorPackage]</description>
<guid>{E269B994-EF71-4CE0-8BCD-581C217372E8}</guid>
<hr>80131500</hr>
<errorinfo>No exports were found that match the constraint:
ContractName Microsoft.VisualStudio.Utilities.IContentTypeRegistryService
RequiredTypeIdentity Microsoft.VisualStudio.Utilities.IContentTypeRegistryService</errorinfo>
</entry>
<entry>
<record>822</record>
<time>2015/04/03 14:42:02.160</time>
<type>Error</type>
<source>VisualStudio</source>
<description>End package load [Microsoft.VisualStudio.Editor.Implementation.EditorPackage]</description>
<guid>{E269B994-EF71-4CE0-8BCD-581C217372E8}</guid>
<hr>80131500</hr>
<errorinfo>No exports were found that match the constraint:
ContractName Microsoft.VisualStudio.Utilities.IContentTypeRegistryService
RequiredTypeIdentity Microsoft.VisualStudio.Utilities.IContentTypeRegistryService</errorinfo>
</entry>

Answer 1

Try clearing the Visual Studio component model cache.