Hi Lanie,

Thank you for trying out astah*.

This message appears when the project is opened by someone else or yourself on another astah*. So when you try to save a file, please make sure that the project you are trying to save is not opened by anyone else or on another astah* at the same time.

To avoid this in the future, you can change the system property setting.
Go to [Tool] - [System Properties] and select [File] on the left list. Check off [Set a lock when opening a project file] option and click [Apply] - [OK].









Hope this helps.

Cheers,
Satomi