
[BOR]
0: Safe
1: Be civil and nice.
2: Try not to excessively repost, as a rule of thumb, wait at least 2 months to do it if you *have* to.

[EOR]
[BOC]
This error can occur when importing libraries and their either not compatible or are duplicates. However I would also consider your build path/configuration as well ad cleaning your project after importing. 
[EOC]
