Problem importing Apple Calendar ics file

[DmitryBarashev]

I tried to import this calendar into GanttProject 3.0 beta and it worked fine.
There is a known issue with ICS files in GP 2.8.11

The GanttProject import wizard does not work

Ooops, sorry, I have found the ICS file and I think that I have reproduced the importer issue. So, the importer actually shows a small “Error” label in the bottom-left corner and the log contains this: java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException at net.fortuna.ical4j.model.PropertyFactoryImpl$AttachFactory.createProperty(PropertyFactoryImpl.java:196) at net.fortuna.ical4j.model.PropertyFactoryImpl.createProperty(PropertyFactoryImpl.java:972) at net.fortuna.ical…

Upgrading to GP 3.0 beta should solve it.
If you are having other issues, please elaborate on that.