Call ExtJS application from a JSP file placed outside my Ext Application's root folder

Question

I am trying to call a ExtJS application from a JSP file placed outside my Ext Application's root folder:

folder structure

How I am trying to do it is:

<script type="text/javascript" src="../UI-INF/LoginApp/CustomManifest.js"></script>
                 <script id="microloader" data-app="c320a89b-22a4" type="text/javascript" src="../UI-INF/LoginApp/bootstrap.js"></script>
                 <script type="text/javascript" src="../UI-INF/ext651/build/ext-all-debug.js"></script>
                   <script type="text/javascript" src="../UI-INF/LoginApp/app.js"></script> 

Manifest is unable to properly fetch classic.json due to which I am getting this error:

Unable to load classic.json properly into manifest

What is the proper way to do it?

Note: We cannot change the JSP location or our application location due to server constraints.