version error

[fejay]

My redis info:

redis_version:2.6.8-pre2
redis_git_sha1:00000000
redis_git_dirty:0
redis_mode:standalone
os:Windows
arch_bits:64
multiplexing_api:winsock_IOCP
gcc_version:0.0.0
process_id:2076
run_id:f0c885c82b3cc21d7780a7725171
tcp_port:6379
uptime_in_seconds:3233
uptime_in_days:0
lru_clock:1217859

error:
Exception in thread "main" redis.client.RedisException: Server does not support SET
at redis.client.RedisClient.set(RedisClient.java:359)
at redisTest.redisTest.RedisProtocolTest.main(RedisProtocolTest.java:12)