NLSR

Hi,

sorry as I'm new to nlsr.

When I run to nlsr , I meet some problem.

I'm trying to run nlsr,I try to configure nlsr.conf ,create the directories defined there, such as:

log-dir /lib/log/nlsr/ ; path for log directory (Absolute path)
seq-dir /lib/lib/nlsr/ ; path for sequence directory (Absolute
But I meet the following question:
chenjie@chenjie-virtual-machine:~/NLSR$ nlsr
User does not have read and write permission on the directory
Error in configuration file processing! Exiting from NLSR
Run under root:
root@chenjie-virtual-machine:/home/chenjie/NLSR# nlsr
Cannot read certificate from file: /home/chenjie/NLSR/root.cert

can you help me with this error please?
thank you
jiechen