Server prerequisites service could not be activated during installation

Products

• IT Analytics

Issue/Introduction

Despite adding the account to be used as the IT Analytics (ITA) service account to the local administrators group, the ITA installer returns the following message:

The requested service 'http://<hostname>/ITAnalytics/Services/ServerPrerequisitesService.svc' could not be activated.

The Windows Application log contains the following error:

System.ServiceModel.ServiceActivationException: The service '/ITAnalytics/Services/ServerPrerequisitesService.svc' cannot be activated due to an exception during compilation.  The exception message is: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.. ---> System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission,

Environment

Release : 2.9.x

Component : Installer

Cause

This is caused by the .NET trust level specified in the Internet Information Services (IIS) Manager being set to a value other than Full (internal). 

Resolution

Set the .NET trust level for the application (IIS) server to Full (internal) by doing the following:

1. On the server hosting the IT Analytics application, open the Internet Information Services (IIS) Manager
2. Click on the server's hostname in the Connections pane
3. In the Features View, under the ASP.NET heading, double-click the .NET Trust Levels icon
4. From the Trust level dropdown menu, select Full (internal)
5. Click the Apply button in the Actions pane