I am in the process of upgrading an MSM configuration from EE 2.11.x to 3.5.7 and have run into the following error on the MSM site:

Your system folder path does not appear to be set correctly. Please open the following file and correct this: index.php

Before the upgrade the path I was using to reference the system folder was this:


That has not changed but now I get the error message.

Any guidance on how to resolve this?

1 Answer 1


Turns out in this case that it was server settings that were preventing the communication between sites. It required:

  • Mod_ruid was disabled
  • suPHP enabled
  • FileProtect in Home »Server Configuration »Tweak Settings turned off

Great support from KnownHost.

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