User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:49.0) Gecko/20100101 Firefox/49.0 Build ID: 20161025170457 Steps to reproduce: Tested on Xubuntu 14.04 lts, Thunderbird Version 45.4.0 with Lightning Version 4.7.4 1. Created new local Calendar. With "Right Click"->"New Calendar"->"On the Computer" 2. Filled in artificial Content in Calendar 3. Made en export of Calendar. "Right Click"->Export Calendar. Saved on "home"-User folder. 4. Added exported Calendar into Thunderbird. "Right Click"->"New Calendar"->"On the Network". added location of *.ics File -> "file:///home/user1/" 5. Tried to create/edit Event in recently created Calendar Actual results: I Get a MODIFICATION_FAILED" Error. With no additional details. When I close thunderbird and reopen it. it turns the Calendar to read only. Expected results: It should save the Event onto the exported *.ics Calendar File and show it accordingly
You need to enter the full URL to the .ics file. In your case try file:///home/user1/calendar.ics or however you want to name it. I prefer a different workflow that is easier in my opinion: I just put the .ica file in the target location or create a new empty .ics file in the target location. In Thunderbird I use menu File > Open > Calendar File to integrate the .ics file as a new calendar in Lightning.
Hi Thank you so much. This Solution worked for me! Kind regards