Error message

I tried ingesting a tab delimited text file in ETL.It is having only two columns
Name RollNumber
Jiya 56546
Neha 4543543

when i ran the graph ,the error message recevied is given below.Please help me out what this error indicates?

INFO [WatchDog] - Successfully started all nodes in phase!
ERROR [SocketReader] - Received error message from server: Record put for property “Name” must have an assignment in property "mdex-property_Type"ERROR [WatchDog] - Graph execution finished with error

Hello,
this message is send by custom component (SocketReader). You need to ask provider of this component.

Can you explain me in detail.

Hello,
the message:

ERROR [SocketReader] - Received error message from server: Record put for property "Name" must have an assignment in property "mdex-property_Type"

is sent by the SocketReader element, which isn’t (I believe) a standard CloverETL component provided by Javlin, but by another vendor (Endeca?). You need to ask the author (provider) of the component for the error explanation.