Error occurred in deployment step 'Activate Features': Cannot start service SPUserCodeV4 on computer ''

Error:

When you first use VS2010 to deploy a sandboxed solution project (default project) , you may see this error:

Error	1	Error occurred in deployment step 'Activate Features': Cannot start service SPUserCodeV4 on computer '<Server Name>'.
		0	0	MySharePointProject1

Resolution:

Go to Central Administration-->select System Settings-->select Manage services on server-->Find the 'Microsoft SharePoint Foundation Sandbox Code Service' and click Start.