Execute SQL Task: Executing The Query Exec (?) Failed With The Following Error: Syntax Error Or Access Violation. Possible F

Hi,
I'm having an SSIS package which gives the following error when executed :

Error: 0xC002F210 at Create Linked Server, Execute SQL Task: Executing the query "exec (?)" failed with the following error: "Syntax error or access violation". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly.Task failed: Create Linked Server

The package has a single Execute SQL task with the properties listed below :

General Properties
Result Set : None

ConnectionType : OLEDB
Connection : Connected to a Local Database (DB1)
SQLSourceType : Direct Input
SQL Statement : exec(?)
IsQueryStorePro : False
BypassPrepare : False

Parameter Mapping Properties

variableName Direction DataType ParameterName

User::AddLinkSql Input Varchar 0


'AddLinkSql' is a global variable of package scope of type string with the value
Exec sp_AddLinkedServer 'Srv1','','SQLOLEDB.1',@DataSrc='localhost',@catalog ='DB1'

When I try to execute the Query task, it fails with the above error. Also, the above the sql statement cannot be parsed and gives error "The query failed to parse. Syntax or access violation"

I would like to add that the above package was migrated from DTS, where it runs without any error, eventhough
it gives the same parse error message.

I would appreciate if anybody can help me out of this issue by suggeting where the problem is.

Thanks in Advance.