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Not able to open the Nintex 2013 workflow in Nintex 2016 ( Sharepoint 2016)

Question asked by kb.kotresh on Oct 12, 2018

Hi , 

We have migrated SP2013 to SP2016  and we also migrated the Nintex Database from 2013 to 2016 .. 

I am able to create new Worklfow but When i tried to open the existing workflow .Its saying below error message 

Kindly let me know if anyone have faced similar problem . 

Please share any pointer to the below issue . 

 

Error establishing database connection. SQL Error: 53.: System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) ---> System.ComponentModel.Win32Exception (0x80004005): The network path was not found
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Nintex.Workflow.Administration.Database.OpenConnectionInternal(String connectionString)
at Nintex.Workflow.Administration.ContentDatabase.OpenConnection()
at Nintex.Workflow.Administration.Database.ExecuteReader(SqlCommand command, CommandBehavior behavior) ClientConnectionId:00000000-0000-0000-0000-000000000000 Error Number:53,State:0,Class:20 (Build:4330)

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