I have create event receiver in dev environment and its working fine. But when try to add in production facing:
PS C:\Users\spfarmadmin> $spWeb = Get-SPWeb -Identity http://site/hr
PS C:\Users\spfarmadmin> $spList = $spWeb.Lists["EmpEntyExit"]
PS C:\Users\spfarmadmin> $spEventReceiver = $spList.EventReceivers.Add()
PS C:\Users\spfarmadmin> $spEventReceiver.Assembly = "$SharePoint.Project.Assemb
lyFullName$"
PS C:\Users\spfarmadmin> $spEventReceiver.Class = "my_STG.AddTaskand_SubTask
.AddTaskand_SubTask"
PS C:\Users\spfarmadmin> $spEventReceiver.Name = "AddTaskand_SubTaskItemAdded"
PS C:\Users\spfarmadmin> $spEventReceiver.Type = 10002
PS C:\Users\spfarmadmin> $spEventReceiver.SequenceNumber = 1000
PS C:\Users\spfarmadmin> $spEventReceiver.Synchronization = 1
PS C:\Users\spfarmadmin> $spEventReceiver.Update()
Exception calling "Update" with "0" argument(s): "Could not load file or assembly '.Project.AssemblyFullName$' or one of its dependencies. The system cannot find the file specified." At line:1 char:1 + $spEventReceiver.Update() + ~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : InvalidOperationException
PS C:\Users\spfarmadmin>