I've been trying to upgrade from Assets 1.2.1 to 2.1.3 but I get this error when I click "run module updates" as the docs explain to do. The error I receive is:
A Database Error Occurred Error Number: 1054
Unknown column 'file_path' in 'exp_assets'
ALTER TABLE exp_assets MODIFY COLUMN file_path VARCHAR(255) NOT NULL
Line Number: 403
ExpressionEngine is version 2.5.3