title: SSIS generate Programmatically: Project connection manager don't appear in the project connection list
body: <p>I create Package from c#,and this code use to work with SQL server 2016 but now with Sql server 2014 its giving me issues :
  I am adding the package to the project this way :</p>
  
  <pre><code>        proj.PackageItems.Remove("HSTG_" + hstg_table.tablename + ".dtsx");
          proj.PackageItems.Add(p, "HSTG_" + hstg_table.tablename + ".dtsx");
  </code></pre>
  
  <p>In the list of connection of the project i can see 3 Connection manager,
  but in the the package i see 0 connection and then of course when i try to access one of them this way p.Connections["META"] it throw me error saying the connection cannot be found.
  <img src="https://s22.postimg.org/kzi7iek7l/project_issue.jpg" alt="local_variable">
  <a href="https://s15.postimg.org/43gk66f23/project_issue_2jpg.jpg" rel="nofollow">local_variable2</a></p>