I just updated a number of sites from MODX version 2.7.0 (and 2.6.5) to version 2.7.1
I encountered the following errors:
upgrading from 2.7.0
Error updating table for class modResource
Array
(
[0] => 42S21
[1] => 1060
[2] => Duplicate column name 'alias_visible'
)
upgrading from 2.6.5 (and on one site from 2.7.0)
Error updating table for class modResource
Array
(
[0] => HY000
[1] => 1283
[2] => Column 'description' cannot be part of FULLTEXT index
)
all the sites seem to work fine notwithstanding the errors on upgrade . . .