在树莓派上安装，提示错误如下，如何解决？
This is your configuration
server name: RPi server ip/domain: 192.168.31.200
seafile data dir: /home/hdd/seafile/seafile-data fileserver port: 8082
database: create new ccnet database: ccnet-db seafile database: seafile-db seahub database: seahub-db database user: seafile
Press ENTER to continue, or Ctrl-C to abort
Generating ccnet configuration …
done
Successly create configuration dir /root/seafile/ccnet.
Generating seafile configuration …
Directory /home/hdd/seafile/seafile-data cannot be created.
Error: Failed to generate ccnet configuration