Clicking on discover environments

Object reference not set to an instance of an object.

at PowerShellUniversal.Automation.PowerShellResolver.GetInstalledVersions() in D:\a\powershell-universal\powershell-universal\src\PowerShellUniversal.Automation\PowerShellResolver.cs:line 114
at PowerShellUniversal.DiscoverEnvironmentsButton.Discover() in D:\a\powershell-universal\powershell-universal\src\Universal.Server\Shared\Settings\DiscoverEnvironmentsButton.razor:line 38
at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
at AntDesign.Button.HandleOnClick(MouseEventArgs args)
at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)