The 'Settings Package' did not load correctly

[Guangheng Xian]

When I updated Visual Studio 2019 Community to 16.5.1, I ran into a few errors during the download process, and was unable to start up Visual Studio because "the settings package did not load correctly". I've been consistently getting this error since I updated Visual Studio and have no idea how to fix it.

I've attached the sections of ActivityLog.xml where the word "error" appears.

I've already tried these possible solutions without success:

• Uninstall and reinstall VS
• Restart laptop
• Uninstall every instance of VS 16.5.1 and reinstall an earlier version (16.4.3) of VS
• Repair in VS Installer

<entry>
<record>57</record>
<time>2020/04/23 20:51:28.947</time>
<type>Error</type>
<source>VisualStudio</source>
<description>LegacySitePackage failed for package [Settings Package]Source: &apos;mscorlib&apos; Description: Could not load type &apos;Microsoft.VisualStudio.Shell.ProvideBrokeredServiceAttribute&apos; from assembly &apos;Microsoft.VisualStudio.Shell.15.0, Version=16.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&apos;.&#x000D;&#x000A;System.TypeLoadException: Could not load type &apos;Microsoft.VisualStudio.Shell.ProvideBrokeredServiceAttribute&apos; from assembly &apos;Microsoft.VisualStudio.Shell.15.0, Version=16.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a&apos;.&#x000D;&#x000A; at System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type)&#x000D;&#x000A; at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)&#x000D;&#x000A; at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)&#x000D;&#x000A; at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, Assembly&amp; lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, Object[] attributes, IList derivedAttributes, RuntimeType&amp; attributeType, IRuntimeMethodInfo&amp; ctor, Boolean&amp; ctorHasParameters, Boolean&amp; isVarArg)&#x000D;&#x000A; at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes, Boolean isDecoratedTargetSecurityTransparent)&#x000D;&#x000A; at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeType type, RuntimeType caType, Boolean inherit)&#x000D;&#x000A; at System.RuntimeType.GetCustomAttributes(Type attributeType, Boolean inherit)&#x000D;&#x000A; at Microsoft.VisualStudio.Shell.Package.ScheduleToolboxItemDiscoveryFactoriesRegistrationIfNecessary()&#x000D;&#x000A; at Microsoft.VisualStudio.Shell.Package.Initialize()&#x000D;&#x000A; at Microsoft.VisualStudio.Shell.AsyncPackage.Initialize()&#x000D;&#x000A; at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.SetSite(IServiceProvider sp)</description>
<guid>{A2863A10-2269-4D3F-9E38-149C15926E1D}</guid>
<hr>80131522</hr>
<errorinfo></errorinfo>
</entry>
<entry>
<record>58</record>
<time>2020/04/23 20:51:28.978</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [Settings Package](null)</description>
<guid>{A2863A10-2269-4D3F-9E38-149C15926E1D}</guid>
<hr>80131522</hr>
<errorinfo></errorinfo>
</entry>
<entry>
<record>59</record>
<time>2020/04/23 20:51:28.978</time>
<type>Error</type>
<source>VisualStudio</source>
<description>End package load [Settings Package]</description>
<guid>{A2863A10-2269-4D3F-9E38-149C15926E1D}</guid>
<hr>80131522</hr>
<errorinfo></errorinfo>
</entry>

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