Getting started. Installing and upgrading nopCommerce.

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Posted: March 21, 2016 at 6:34 AM Quote #164358
I am on version 3.10 and want to upgrade to 3.7.

There are many code changes i have done in .cs files in order to accommodate customers requirement.

How i should proceed for upgradation  ,without losing my any customised functionalities.

Please help ASAP -- Thanks in advance
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Posted: March 21, 2016 at 7:48 AM Quote #164359
@[email protected] I have upgrade the nopcommerce version from 2.7 to 3.4. I also changed the default code I mean the core source code.

What I did for update nopcommerce. Run db script from 2.7 to 3.4 and then change the code accordingly.

You can get the db script from https://github.com/nopSolutions/nopCommerce/tree/develop/upgradescripts
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Posted: July 05, 2016 at 4:27 PM Quote #171126
We just upgraded from 3.4 to 3.7
We began experiencing 2 frequently with multiple customers after upgrading to 3.7
The errors do not occur with all customers but enough so that our client's customer service dept. is getting buried.

Error 1 Object reference

Error while placing order. Error 1: Object reference not set to an instance of an object.  7/4/2016 5:38:07 PM

Error 2 Duplicate transaction entry

Error while placing order. Error 1: Payment error: Error #E00027: The transaction was unsuccessful.. Error 2: Payment error: Error #11: A duplicate transaction has been submitted.
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Posted: November 30, 2018 at 7:28 PM Quote #216810
Why dont you make instructions for upgrading no-source nop-commerce from 3.9 to 4.0; no information at all
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