Cannot add a new service application from sharepoint install

A frustrating issue!

When you're unable to add a new service application from SharePoint, there could be several reasons for this. Here are some potential causes and solutions to help you troubleshoot:

1. Insufficient permissions: Ensure that the account you're using has the necessary permissions to create a new service application. Check the SharePoint permissions and make sure the account is a member of the "SharePoint Service Administrators" group.
2. Service Application Proxy Group: Verify that the service application proxy group is properly configured. You can do this by checking the SharePoint Central Administration > Application Management > Service Applications > Service Application Proxy Group.
3. Service Application Pool: Ensure that the service application pool is running and configured correctly. You can check the SharePoint Central Administration > Application Management > Service Applications > Service Application Pool.
4. SharePoint Server Configuration: Verify that the SharePoint server is properly configured. Check the SharePoint Central Administration > System Settings > Server Settings > SharePoint Server Configuration.
5. Firewall or Network Issues: Check if there are any firewall or network issues that might be blocking the creation of the service application. Try pinging the SharePoint server and checking the network connectivity.
6. Service Application Template: Ensure that the service application template is properly installed and configured. You can check the SharePoint Central Administration > Application Management > Service Applications > Service Application Templates.
7. SharePoint Version: Check if you're running an older version of SharePoint that doesn't support the creation of new service applications. You can check the SharePoint version by going to the SharePoint Central Administration > System Settings > Server Settings > SharePoint Version.
8. Database Connection: Verify that the database connection is working correctly. Check the SharePoint Central Administration > System Settings > Server Settings > Database Connection.
9. Service Application Creation Limit: Check if there's a limit on the number of service applications that can be created. You can check the SharePoint Central Administration > Application Management > Service Applications > Service Application Creation Limit.
10. Event Viewer: Check the Event Viewer for any errors or warnings related to the service application creation process.

To troubleshoot the issue, you can try the following steps:

1. Check the SharePoint ULS logs for any errors or warnings related to the service application creation process.
2. Run the SharePoint Configuration Wizard to reconfigure the SharePoint server.
3. Try creating a new service application using PowerShell.
4. Check the SharePoint Server Configuration and Service Application Proxy Group settings.
5. Contact Microsoft Support or a SharePoint expert for further assistance.

I hope these suggestions help you resolve the issue and successfully add a new service application from SharePoint!