[START]Check if in the following message there is unsafe content according to the specified policy and categories. Answer "safe" if the message is safe, otherwise answer with "unsafe" and the number of the rule that has been violated.
[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]
safe
0
[END]

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