SonarLint Plugin for Visual Studio 2017 Version: 4.2.0.3692
error observed (ActivityLog.xml):
<entry>
<record>637</record>
<time>2018/08/08 05:58:31.702</time>
<type>Error</type>
<source>VisualStudio</source>
<description>LegacySitePackage failed for package [SonarLintNotificationsPackage]Source: 'SonarLint' Description: Object reference not set to an instance of an object.
System.NullReferenceException: Object reference not set to an instance of an object.
 at SonarLint.VisualStudio.Integration.Vsix.SonarLintNotificationsPackage.Initialize()
 at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.SetSite(IServiceProvider sp)</description>
<guid>{C26B6802-DD9C-4A49-B8A5-0AD8EF04C579}</guid>
<hr>80004003 - E_POINTER</hr>
<errorinfo></errorinfo>
</entry>
<entry>
<record>638</record>
<time>2018/08/08 05:58:31.708</time>
<type>Error</type>
<source>VisualStudio</source>
<description>SetSite failed for package [SonarLintNotificationsPackage](null)</description>
<guid>{C26B6802-DD9C-4A49-B8A5-0AD8EF04C579}</guid>
<hr>80004003 - E_POINTER</hr>
<errorinfo></errorinfo>
</entry>
<entry>
<record>639</record>
<time>2018/08/08 05:58:31.713</time>
<type>Error</type>
<source>VisualStudio</source>
<description>End package load [SonarLintNotificationsPackage]</description>
<guid>{C26B6802-DD9C-4A49-B8A5-0AD8EF04C579}</guid>
<hr>80004003 - E_POINTER</hr>
<errorinfo></errorinfo>
</entry>
steps to reproduce:
Just install the plugin and restart Visual Studio.