SSIS Package Upgrade Issues 2008 to SQL Server 2016

I'm trying to upgrade SSIS packages created in SQL Server 2008 to SQL Server 2016 by opening the solution in Visual studio 2015 in my local. I'm using the correct version of SSDT for VS 2015. I have selected all the SSIS packages in the solution for upgrade and upgrade was unsuccessful with the below error messages.

I tried to open the packages in the solution one by one and it shown the dialogue upgrade is successful with some warnings. Please help me to solve the issues shown in the below error messages. As I have upgraded the package individually by opening it, will there be any other issues? (I can run it in local and still didn't try to put the package in our system where packages are getting called automatically)

Main error messages:

Upgrading package XXXX.dtsx (Error)

Messages

• Warning 0x4020f42c: : The Maximum insert commit size property of the OLE DB destination "OLE DB Destination" is set to 0. This property setting can cause the running package to stop responding. For more information, see the F1 Help topic for OLE DB Destination Editor (Connection Manager Page).

• Error 0xc0202009: XXXX: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description: "[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied.".

• Error 0xc020801c: Load new records: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "YYYYYY" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.