error on build, unknown image id

[Delf Tonder]

i get this on ubuntu 14.04 server:

$ uname -a
Linux coolhost 3.13.0-54-generic #91-Ubuntu SMP Tue May 26 19:15:08 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ docker -v
Docker version 1.6.2, build 7c8fca2
$ docker build -t="mondain/red5" github.com/Red5/docker
Sending build context to Docker daemon 165.4 kB
Sending build context to Docker daemon 
Step 0 : FROM java:openjdk-7-jdk
openjdk-7-jdk: Pulling from java
64e5325c0d9d: Download complete 
bf84c1d84a8f: Download complete 
87de57de6955: Download complete 
6a974bea7c0d: Download complete 
06c293acac6e: Download complete 
aad2154e3cf6: Download complete 
c40184c0f4d8: Download complete 
2451fe5f5c0d: Download complete 
39b678444b33: Downloading [===================>                               ] 54.06 MB/139.7 MB
39b678444b33: Download complete 
INFO[0091] could not find image: no such id: 39b678444b3372f573d511975fedf699d0e1177ab66c71d3faec6bca8c868ee7

[Delf Tonder]

solved by running rm -rf /var/lib/docker