Hello,
I faced the same problem within an upgrade from 7.6 to 8.7 via upgradeWizard.
All other wizards worked, but this one produced the same error message you
described. Did you find a solution in the meantime?
I did this as a workaround:
In the file DataMapProcessor.php I put the following lines on comment:
/*
foreach ($fieldNames as $fieldName ) {
$this->synchronizeFieldValues ($item,...);
}
*/
After that the Wizard went through and up to now I have no problems with the
upgraded project. Nevertheless i guess this is not the correct solution and
would be happy about more informations or better ideas.
Thanks in advance
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