[flexcoders] Flex 3 (SDK3.6) to Flex 4 (SDK 4.6) Migration

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sachin sharma hey_sachin@yahoo.com [flexcoders]

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Nov 27, 2014, 10:38:24 PM11/27/14
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Hi FlexCoders,

Has any one done migration from Flex 3 to 4, If so could you please share your experience where as I need to know what things need to be taken care of during migration and where to start? 

Regards
--Sachin 

 

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anas naeem maverick_0601@yahoo.com [flexcoders]

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Nov 28, 2014, 9:16:46 AM11/28/14
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Hi Sachin,

Transition from 3.6 to 4.6 is not very complex nor its too easy what I mean to say is that there are somethings that you need to consider while you are moving to higher end versions of Flex SDK.

1. Flex 4 supports a spark skinning architecture which may sound complex for anyone new to it , if you are largely depending upon css based development/tweaking of your custom or native flex components then you it may not help you alot though you can use css also but there are some components in flex where css rules may not apply like Group/VGroup/HGroup as in skinning where you have the full liberty to change the full UI of the built-in components under Adobe's terms and conditions at the same time you may find it quite complex in maintaining your skins if you have no prior knowledge of skinning so I should recommend you that you should get some knowledge on it first.

You might need to change or configure your themes accordingly like Halo , Spark etc etc.

2.Regarding your service layer things may remain the same as they are currently with your current SDK version you may have to change one or two things but nothing very much is required at this end.

3. Data model will also not get much effected in transition but you will need to be careful while using advance data components of Flex like Advanced Data Grid OLAP datagrid.

4. Good support with backward compatibility and earlier versions of flex. Flex 4 supports full backward compatibility of your components you may only need to change the Application tag of your project according new Flex 4 based and rest is good to go.

5. Localization- this would almost remain same no special things required.

Note: These were a few things that I considered or encountered in my experience while I was taking my product to higher level SDK in flex but these are not all the things you may need to do some more Google on it. As these are some things that are normally considered on first priority in transition phase but remember they are not the all.

You can further read these 2 very informative and good articles

http://www.adobe.com/devnet/flex/articles/flex3and4_differences.html

http://www.adobe.com/devnet/flex/articles/migrating-flex-apps-part1.html

Regards.
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On Thu, 11/27/14, sachin sharma hey_s...@yahoo.com [flexcoders] <flexc...@yahoogroups.com> wrote:

Subject: [flexcoders] Flex 3 (SDK3.6) to Flex 4 (SDK 4.6) Migration
To: "flexc...@yahoogroups.com" <flexc...@yahoogroups.com>
Date: Thursday, November 27, 2014, 7:35 PM


















 









Hi
FlexCoders,
Has any
one done migration from Flex 3 to 4, If so could you please
share your experience where as I need to know what things
need to be taken care of during migration and where to
start? 
Regards--Sachin 
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Posted by: anas naeem <maveri...@yahoo.com>
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sachin sharma hey_sachin@yahoo.com [flexcoders]

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Nov 29, 2014, 11:23:00 AM11/29/14
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Thanks anas naeem, It is really a very helpful information for me.

Regards
--Sachin

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Posted by: sachin sharma <hey_s...@yahoo.com>
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sachin sharma hey_sachin@yahoo.com [flexcoders]

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Dec 4, 2014, 8:43:49 PM12/4/14
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Hi Guys,

After converting application to sdk 4.6 and compiled the flex application and got this errors, could u please provide solution for this. I searched on google but no luck. It would be great help if you can point me to right direction

VerifyError: Error #1014: Class IDeferredInstantiationUIComponent could not be found.

 

VerifyError: Error #1014: Class mx.flash::UIMovieClip could not be found.

Regards
Sachin

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Posted by: sachin sharma <hey_s...@yahoo.com>
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