group work conflict

1. As a group work, it was hard to balance work load for everyone. Some of the group members complained they did not have enough work to do.

2. Some of the group members took too many courses and they didn't have time to work for this project every day. But for a project, we needed time to merge work and fix bugs.

3. Some people liked to finish work as soon as possible and others did not take it as a high priority.

4. After we merged our works together and started testing, we found many bugs. First we notified the class owner to fix them. Later we found it is inefficient to wait for their fixes. Therefore, we decided anybody could change the code even it was written by others. However, new problem raised: person A changed person B's code without completely understanding, and later person B changed them back. There were lots of repeat work and conflicts.