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Thread: Extjs3 to Ext4 migration

  1. #1
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    Default Extjs3 to Ext4 migration

    We are migrating MVC application from Extjs3 to Extjs4
    Below are the steps we followed.
    1) Added
    Ext JS 3 Compatibility Layer
    2)Added ext3-compat.js and ext3-core.compat.js files reference
    3) Added Extjs4 reference
    4) Removed the Extjs3 reference

    5)Changed Ext3 grid(with paging toolbar) to Ext4
    This results in the below output:

    An Empty screen --The UI cannot be seen.
    Exceptions thrown are :

    1."Ext is not defined" in ext3-compat.js at
    if (Ext.toolbar && Ext.toolbar.Toolbar)

    2."Ext is not defined" in ext3-core-compat.js at
    Ext.Compat = function() in ext3-core-compat.js


    Could you please help to resolve this

    Thanks.

  2. #2
    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    Default

    Sounds like the frameworks aren't loaded properly
    Mitchell Simoens @LikelyMitch
    Sencha Inc, Senior Software Engineer
    ________________
    Learn BBCode and use it! Checkout the CODE tag!

    Check out my GitHub, lots of nice things for Ext JS and Sencha Touch
    https://github.com/mitchellsimoens

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