Description

Queries against Solr might fail with an unhandled exception after Sitecore XP restarts. The error usually occurs in the GetResults, GetFacets, InContext or Filter methods, for example:

Exception: System.InvalidOperationException
Message: There is no method 'GetResults' on type 'Sitecore.ContentSearch.Linq.QueryableExtensions' that matches the specified arguments
Source: System.Core
   at System.Linq.EnumerableRewriter.FindMethod(Type type, String name, ReadOnlyCollection`1 args, Type[] typeArgs, BindingFlags flags)
   at System.Linq.EnumerableRewriter.VisitMethodCall(MethodCallExpression m)
   at System.Linq.EnumerableExecutor`1.Execute()
   at Sitecore.ContentSearch.Linq.QueryableExtensions.GetResults(IQueryable`1 source) 
   ...

Solution

To resolve the issue, consider one of the following options:

• Upgrade Sitecore XP instance to Sitecore XP 9.1.0 or later.
• Download and install the hotfix compatible with the affected product version:
  • For Sitecore XP 9.0 rev.171219 (Update-1): SC Hotfix 298196-1 ContentSearch 3.1.1.zip
  • For Sitecore XP 8.2 rev.170728 (Update-5): SC Hotfix 319952-1 ContentSearch 2.0.5.zip
  • For Sitecore XP 8.2 rev.161221 (Update-2): SC Hotfix 300569-1 ContentSearch 2.0.2.zip

  Be aware that the hotfixes were built for specific Sitecore XP versions and must not be installed on other Sitecore XP versions or in combination with other hotfixes. In case any other hotfixes have already been installed on a certain Sitecore XP instance, send a request for a compatibility check to Sitecore Support.

  Note that the ZIP file contents must be extracted to locate installation instructions and related files inside. The hotfixes must be installed on a CM instance and then synced with other instances using standard development practices.