After upgrading Microsoft CRM 2016 sp1 to Microsoft Dynamics 365 On Premises
on loading the CRM home page i got the below error and NavBar disappear completely
Microsoft Dynamics 365 Error Report Contents
<CrmScriptErrorReport>
<ReportVersion>1.0</ReportVersion>
<ScriptErrorDetails>
<Message>Error initializing component with element id='navBar' and with type='Mscrm.NavBar': Unable to get property 'constructor' of undefined or null reference</Message>
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