我有Ubuntu 14.04，我已经安装了JULIA，然后我尝试安装IJULIA，在julia上写Pkg.add（＆＃34; IJulia＆＃34;），但是看起来：
signal (4): Illegal instruction
_mapreduce at ./reduce.jl:168
prune_versions at ./pkg/query.jl:141
prune_dependencies at ./pkg/query.jl:335
jl_trampoline at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
jl_apply_generic at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
resolve at ./pkg/entry.jl:379
edit at pkg/entry.jl:24
jl_trampoline at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
jl_apply_generic at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
anonymous at task.jl:340
jl_trampoline at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
unknown function (ip: -1230846045)
unknown function (ip: -1230845923)
julia_trampoline at /usr/bin/../lib/i386-linux-gnu/julia/libjulia.so (unknown line)
unknown function (ip: 134516370)
__libc_start_main at /lib/i386-linux-gnu/libc.so.6 (unknown line)
unknown function (ip: 134516419)
Illegal instruction (core dumped)
有谁知道该怎么办？我想要实现的是运行ipython notebook --profile julia