Can't creat the minist_lmdb file in the LeNet

[fanser]

I have download and unzip the .gz file,and when i enter:

fzy@fzy-OptiPlex-3020:~/caffe-master$ sudo sh examples/mnist/create_mnist.sh

I get the error,as follows:

Creating lmdb...
WARNING: Logging before InitGoogleLogging() is written to STDERR
F1020 17:55:59.447778 32078 convert_mnist_data.cpp:207] This example requires LevelDB and LMDB; compile with USE_LEVELDB and USE_LMDB.
*** Check failure stack trace: ***
Aborted (core dumped)
WARNING: Logging before InitGoogleLogging() is written to STDERR
F1020 17:55:59.532909 32080 convert_mnist_data.cpp:207] This example requires LevelDB and LMDB; compile with USE_LEVELDB and USE_LMDB.
*** Check failure stack trace: ***
Aborted (core dumped)
Done.

so what's the wrong?

[fanser]

I have resolved the question by accepting follows
from http://caffe.berkeleyvision.org/installation.html#compilation
(caffe_root)
cd build
cmake ..
make

then type ./examples/mnist/create_mnist.sh again at caffe_root.
it run successfully!