Using hdfs sink throwing an error

I am trying to use HDFS as sink while creating streams and I am encountering the following error :

Please refer attached document :
Exception - localhost - 8020.txt

The fs.default.name set in hadoop.properties is :
fs.default.name=hdfs://localhost:8020

I have also tried the following variation in the hadoop.properties file :
fs.default.name=hdfs://127.0.0.2:8020
fs.default.name=hdfs://127.0.0.2:50070

Using these values are also throwing me exceptions as mentioned in the following files attached :

Exception - 127.0.0.2 - 8020.txt
Exception - 127.0.0.2 - 50070.txt

We are using :
Pivotal HD 1.0.1
spring-xd-1.0.0.M5-dist

Kindly let us know the way around for this issue.