Support » Plugin: MailChimp Campaigns » Fatal error: Class ‘MailchimpCampaignsManager’ not found

  • I tried to install version Version 3.2.1 of the plugin on my site and when I go to activate I get this error “Fatal error: Class ‘MailchimpCampaignsManager’ not found in …/public_html/wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCustomPostType.php on line 8”

    Help please?

Viewing 4 replies - 1 through 4 (of 4 total)
  • Please find MailchimpCampaignsManager.php into
    olalaweb-mailchimp-campaign-manager/class and change the class name “Mailchimp” to “MailchimpCampaignsManager”

    and now install the plugin. It will be fixed.

    • This reply was modified 2 years, 3 months ago by sudhir5106.
    Plugin Author matthieuscarset


    Hi @grapevinecs can you try to upgrade to latest release of today 3.2.2 ?

    Let us know if it fixed your issue in reply

    Thanks again for trying out this plugin and sorry for the inconvenience.

    @sudhir5106 thanks for pointing out what was causing this issue!

    Thread Starter grapevinecs


    I activated it but I did get this error after activation “The plugin generated 229 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.”

    I’m going to try still setting it up and I’ll let you know if I have other issues.

    Plugin Author matthieuscarset


    Hi @grapevinecs there is a new release 3.2.3 whom activation hook has been removed. It should fix your issue.

    Could you please try and let us know if module activates correctly?

Viewing 4 replies - 1 through 4 (of 4 total)
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