mysqldump: [ERROR] unknown variable 'delayed-inser

This error occurs on various systems and can be temporarily fixed by:

Going to the appropriate directory depending on the system:a) Windows:

C:\Program Files\MySQL\MySQL Workbench 6.3 CE\modules

(32-bit installation on x64 systems:

C:\Program Files (x86)\MySQL\MySQL Workbench 6.3 CE\modules

)b) Mac OS X:

Applications/MYSQLWorkbench.app/Contents/Resources/plugins

- right click on the app and select Show Package contents to get inside the app (thanks to Bradley Flood)c) Linux Ubuntu:

/usr/lib/mysql-workbench/modules

(thanks to Alessandro Lopes)

Open file

wb_admin_export_options.py

Find line

"delayed-insert":["Write INSERT DELAYED statements rather than ...

Insert

#

at the begin of this line to comment it out

Save file and restart Workbench.

Tested on Windows 7 x64, MySQL 5.6.27 (MyISAM) & Workbench 6.3.5 x64.
Tested on OSX Yosemite 10.10.4, MySQL 5.5.27 (MyISAM), Workbench 6.3.5 build 201 CE x64.