# How can i deal with these problem? **URL:** \ **Category:** HADDOCK\ **Created:** [October 5, 2020, 9:13am UTC](https://ask.bioexcel.eu/t/how-can-i-deal-with-these-problem/2491 "2020-10-05T09:13:28Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![wwanh](https://avatars.discourse-cdn.com/v4/letter/w/a8b319/32.png) [@wwanh](https://ask.bioexcel.eu/u/wwanh)\ **Post date:** [October 5, 2020, 9:13am UTC](https://ask.bioexcel.eu/t/how-can-i-deal-with-these-problem/2491/1 "2020-10-05T09:13:28Z")
![图片](https://europe1.discourse-cdn.com/flex013/uploads/bioexcel/original/1X/ac07edbbc10d57fc8ab5f38aee1271bb3879a228.png) ---
**Author:** ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)\ **Post date:** [October 5, 2020, 9:26am UTC](https://ask.bioexcel.eu/t/how-can-i-deal-with-these-problem/2491/2 "2020-10-05T09:26:40Z")
HADDOCK2.4 is following now the official PDB naming for nucleic acids, i.e. one letter code for RNA and two for DNA. Check: ``` https://bianca.science.uu.nl/haddock2.4/library ``` ---
**Author:** ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)\ **Post date:** [October 5, 2020, 9:27am UTC](https://ask.bioexcel.eu/t/how-can-i-deal-with-these-problem/2491/3 "2020-10-05T09:27:17Z")
PS: Did you actually try to click on the link provided in the error message? ---
**Author:** ![wwanh](https://avatars.discourse-cdn.com/v4/letter/w/a8b319/32.png) [@wwanh](https://ask.bioexcel.eu/u/wwanh)\ **Post date:** [October 7, 2020, 1:57am UTC](https://ask.bioexcel.eu/t/how-can-i-deal-with-these-problem/2491/4 "2020-10-07T01:57:26Z")
 OK THANK YOU   ------------------ Original ------------------