System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.

Question

Could someone help clarify the way to utilize these steps in order to fix my sharepoint configuration. It currently stops at stage five with the error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. It's not clear which parts I insert with my own information and what is just copied and pasted.

Step 1: Enable search admin timer job via PowerShell.

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 Enable-SPTimerJob job-application-server-admin-service  

Step 2: Update the account running Osearch15/Hostcontroller services using:

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$password = Read-Host -AsSecureString  
Set-SPEnterpriseSearchService -IgnoreSSLWarnings $true -ServiceAccount <domain\Account> -ServicePassword $password  

Step 3: Make sure the account you use to configure the application is a member of the WSS_WPG group and the group has full control over the following path.

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C:\Program Files\Microsoft Office Servers\15.0\Data\Office Server\Applications.  

Step 4: Run following powershell to check if AdminComponents has value returned.

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$ssa = Get-SPEnterpriseSearchServiceApplication 'Search Service Application'  
Get-SPEnterpriseSearchAdministrationComponent -SearchApplication $ssa  

If not, set as following:

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$varInstance = Get-SPEnterpriseSearchServiceInstance -local  
set-spenterprisesearchadministrationcomponent –searchapplication $varSearchApp –searchserviceinstance 

Answer 1

Hi @Tevon ,

Thank you for your description. Regarding your question, there may be some things I don't understand and I want to confirm with you.

1. Did you get the error message "System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation." when you executed the following statement?

$varInstance = Get-SPEnterpriseSearchServiceInstance -local set-spenterprisesearchadministrationcomponent –searchapplication $varSearchApp –searchserviceinstance

2. Did you refer to a link for this step? Could you please send it to me for reference test?
3. What function do you want to achieve in the end, can you describe it in detail?