Since version 17.0.1, MagicDraw supports UML 2.x notation only. MagicDraw 17.0 is the last version that supports the UML 1.x notation. To open a project based on UML 1.x, such as a project created with MagicDraw 9.x or earlier versions, you must convert your project to a MagicDraw 17.0 project.
To make the conversion process easier, you can use a free standalone MagicDraw Project Converter. This converter is specifically designed to convert MagicDraw 9.x or earlier version projects to MagicDraw 17.0 projects.
To start the MagicDraw Project Converter
Download MagicDraw Project Converter at https://www.magicdraw.com/files/plugins/MagicDraw_Project_Converter.zip or please open the No Cost Plugin page at https://www.magicdraw.com/download_no_cost_plugins#free and select the converter from the plugins list.
Extract the file.
Go to the bin directory and run converter.exe to start MagicDraw Project Converter.
To convert a project
Open MagicDraw Project Converter.
In the MagicDraw 9.x project(s) box, select the project you want to convert.
In the Output location box, specify the location wherein the converted project will be saved.
If your project contains modules, you must save them as separate projects at first. Start to save from modules that do not have two-way interconnections.