"Database will be converted with small defects. Click yellow marked tables for more details" - This message implies that conversion of the selected database can face some troubles. Click twice on yellow marked items to solve the problem.
Example: As you can see destination is marked yellow. It means that some tables, fields or indexes can cause conversion problems.
Please, double click the yellow marked tables and fields to find the cause for this warning. Now can see that the field named "id" provokes the following message: " Warning! Autoincrement field should be a Primary Key ". After you eliminate the error all objects that were previously marked yellow turn into non-problematic.
