Hello there, so, i’m a new user, and im willing to help and be part of the community.
I’m getting some serious trouble to solve this error. Im using the complete version of the program, using NIS and NCC at same time.
Already make account, but when i try to local harvest, im getting the error. Looked up the log files and i think theres nothing wrong. Doing delegated harvesting is good.
Also, ive open ports in the router to solve the problem, but with no sucess.
i’ll put the logs here.
How much vested xem do you have on the account with which you try to harvest?
The log says:
Http Status Code 400: FAILURE_UNKNOWN_ACCOUNT
What is the address of the account you try to harvest with?
Did you activate delegated harvesting? Did you wait for 6 hours after doing so?
Yes. I have same throuble. Did you fix it @Raphael_Caldas ??
Por cierto Rafael, hablas español?
De donde diablos saco los logs?
Y (this is for @BloodyRookie)
a) Is secure to leave here my account address? because I have same throuble
b) Is there a minimal ammout of Xem to harvesting it?)
Espero cualquier ayuda
Reagards and thanks in advance
Diego
Yes, all account addresses are public anyway.
You need 10k vested xem to be able to harvest.
Thank you @BloodyRookie
But… 10k Xem or 10k VESTED xem??
Can you explain to me what does ‘VESTED’ excatly means?
Vested = Confirmations? Because I have 7k confirmations
And this is my public account address
NAGGAA-2R3B6M-PYDTPF-XTBGH7-5K2OGC-3NAOQ3-5L4R
vested xem 
If you transfer xem to your balance, the xem are initially unvested. Every day 10% of the unvested part of your balances vests. So if you transfer 20k xem to an account, after 1 day 2k xem have vested and 18k xem are still unvested. Afer 2 days 3.8k xem are vested (2k + 1.8k) and 16.2k are unvested and so on.
The balance for your account shows 11.245 vested xem, rest is unvested:
http://chain.nem.ninja/#/search/NAGGAA-2R3B6M-PYDTPF-XTBGH7-5K2OGC-3NAOQ3-5L4R
So @BloodyRookie If I Just have eleven vested Xem
Can I predict when I reach 10k vested xem? Or it is impossible?
I appreciate your time to help me
With 24 xem all in all you cannot ever get 10k vested xem 
The vested part is never exceeding all xem you have.
Ok, Now I got it hehe
Gracias