Magento 2.2.8: cannot install MailChimp

by Gerardo Siano   Last Updated October 19, 2019 16:09 PM - source

I have Magento 2.2.8 and I'm not able to install MailChimp in ANY way. I tried the manual installation, but it said:

[ReflectionException] Class Mailchimp does not exist

I tried the installation with the composer in a lot of ways, but it retrieved a lot of warning/exceptions. If I try to install the latest version compatible with my version (101.2.34), the installation goes through, but at the end, I got this error:

The following modules are outdated:
Ebizmarts_MailChimp db schema version: defined in codebase - 101.2.34, currently installed - 102.3.37
Ebizmarts_MailChimp db data version: defined in codebase - 101.2.34, currently installed - 101.2.37 [] []

So I tried to install the version 101.2.37 (which it should be compatible only with Magento 3). Indeed, the installation doesn't go through and I got this error from the composer:

  Problem 1
    - mailchimp/mc-magento2 102.3.37 requires magento/framework 102.0.* -> no matching package found.
    - mailchimp/mc-magento2 102.3.36 requires magento/framework 102.0.* -> no matching package found.
    - mailchimp/mc-magento2 102.3.35 requires magento/framework 102.0.* -> no matching package found.
    - mailchimp/mc-magento2 102.3.34 requires magento/framework 102.0.* -> no matching package found.
    - Installation request for mailchimp/mc-magento2 ^102.3 -> satisfiable by mailchimp/mc-magento2[102.3.34, 102.3.35, 102.3.36, 102.3.37].

I tried to install ALL the previous versions via composer, but it always tells me that the modules are outdated. I tried to run composer update as well, but it didn't fix the problem.

This thing is very annoying and I really don't know how to figure this out. I really need to install MailChimp.

Please, help me! Thanks



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