For what it's worth, i was able to work around this bug by editing the tasks XML file. I found the task mentioned in the error ("34@1 is not children of root"), found that there were <subtask> tags which were not recognised by this version of gtg, removed them, and was eventually able to start gtg after repeating for each task mentioned in the subsequent crash.
For what it's worth, i was able to work around this bug by editing the tasks XML file. I found the task mentioned in the error ("34@1 is not children of root"), found that there were <subtask> tags which were not recognised by this version of gtg, removed them, and was eventually able to start gtg after repeating for each task mentioned in the subsequent crash.