Not able to run flume agent

[ghost]

As in hacker day session there we were facing issue with charset of NASA file, as mentioned that will get solution for this.

As i am referring the file from git hub for flume agent

flume agent for the first client

flume-ng agent --name julyLog --conf-file clienta.properties

for this i am getting error:

flume agent run for the second flume client

flume-ng agent --name augLog --conf-file clientb.properties
for this i am getting error:

in both the cases i am getting error with "ERROR source.SpoolDirectorySource: FATAL: Spool Directory source src1: { spoolDir: /home/cloudera/sample-data/nasa_log/july }: Uncaught exception in SpoolDirectorySource thread. Restart or reconfigure Flume to continue processing. java.nio.charset.MalformedInputException: Input length = 1"

Please give solution for this.