Caffe: /usr/bin/ld: cannot find -l -llmdb

[Suraj59]

make clean
make all

AR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -l -llmdb
collect2: error: ld returned 1 exit status
Makefile:575: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: * [.build_release/lib/libcaffe.so.1.0.0] Error 1
any one have solution thank you

[PENGUINLIONG]

It seems you raised the same issue (#5891) twice. Please close either of them.

Did you install lmdb? Seems it was unable to link against lmdb.

[PENGUINLIONG]

Please stop making spam comments. It rather interferes developers.

[Suraj59]

yes i did this
git clone https://github.com/LMDB/lmdb
Cloning into 'lmdb'...

remote: Counting objects: 7816, done.
remote: Total 7816 (delta 0), reused 0 (delta 0), pack-reused 7815
Receiving objects: 100% (7816/7816), 1.70 MiB | 190.00 KiB/s, done.
Resolving deltas: 100% (3361/3361), done.
Checking connectivity... done.
root@esense9:~/.local/install/caffe#
root@esense9:~/.local/install/caffe# cd lmdb/libraries/liblmdb
root@esense9:~/.local/install/caffe/lmdb/libraries/liblmdb#
root@esense9:~/.local/install/caffe/lmdb/libraries/liblmdb# make && make installgcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c midl.c
ar rs liblmdb.a mdb.o midl.o
ar: creating liblmdb.a
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -fPIC -c mdb.c -o mdb.lo
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -fPIC -c midl.c -o midl.lo
gcc -pthread -shared -o liblmdb.so mdb.lo midl.lo
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb_stat.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mdb_stat.o liblmdb.a -o mdb_stat
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb_copy.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mdb_copy.o liblmdb.a -o mdb_copy
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb_dump.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mdb_dump.o liblmdb.a -o mdb_dump
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mdb_load.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mdb_load.o liblmdb.a -o mdb_load
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mtest.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mtest.o liblmdb.a -o mtest
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mtest2.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mtest2.o liblmdb.a -o mtest2
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mtest3.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mtest3.o liblmdb.a -o mtest3
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mtest4.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mtest4.o liblmdb.a -o mtest4
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized -c mtest5.c
gcc -pthread -O2 -g -W -Wall -Wno-unused-parameter -Wbad-function-cast -Wuninitialized mtest5.o liblmdb.a -o mtest5
mkdir -p /usr/local/bin
mkdir -p /usr/local/lib
mkdir -p /usr/local/include
mkdir -p /usr/local/share/man/man1
for f in mdb_stat mdb_copy mdb_dump mdb_load; do cp $f /usr/local/bin; done
for f in liblmdb.a liblmdb.so; do cp $f /usr/local/lib; done
for f in lmdb.h; do cp $f /usr/local/include; done
for f in mdb_stat.1 mdb_copy.1 mdb_dump.1 mdb_load.1; do cp $f /usr/local/share/man/man1; done
root@esense9:~/.local/install/caffe/lmdb/libraries/liblmdb# cd ..
root@esense9:~/.local/install/caffe/lmdb/libraries# cd ..
root@esense9:~/.local/install/caffe/lmdb# cd ..
root@esense9:~/.local/install/caffe# make clean
root@esense9:~/.local/install/caffe# make all
PROTOC src/caffe/proto/caffe.proto
CXX .build_release/src/caffe/proto/caffe.pb.cc
CXX src/caffe/solver.cpp
CXX src/caffe/net.cpp
CXX src/caffe/internal_thread.cpp
CXX src/caffe/syncedmem.cpp
CXX src/caffe/solvers/adagrad_solver.cpp
CXX src/caffe/solvers/nesterov_solver.cpp
CXX src/caffe/solvers/adam_solver.cpp
CXX src/caffe/solvers/sgd_solver.cpp
CXX src/caffe/solvers/rmsprop_solver.cpp
CXX src/caffe/solvers/adadelta_solver.cpp
CXX src/caffe/layer_factory.cpp
CXX src/caffe/layer.cpp
CXX src/caffe/blob.cpp
CXX src/caffe/common.cpp
CXX src/caffe/data_transformer.cpp
CXX src/caffe/parallel.cpp
CXX src/caffe/util/signal_handler.cpp
CXX src/caffe/util/benchmark.cpp
CXX src/caffe/util/im2col.cpp
CXX src/caffe/util/db_leveldb.cpp
CXX src/caffe/util/db_lmdb.cpp
CXX src/caffe/util/cudnn.cpp
CXX src/caffe/util/io.cpp
CXX src/caffe/util/insert_splits.cpp
CXX src/caffe/util/blocking_queue.cpp
CXX src/caffe/util/hdf5.cpp
CXX src/caffe/util/math_functions.cpp
CXX src/caffe/util/upgrade_proto.cpp
CXX src/caffe/util/db.cpp
CXX src/caffe/layers/eltwise_layer.cpp
CXX src/caffe/layers/hdf5_output_layer.cpp
CXX src/caffe/layers/cudnn_relu_layer.cpp
CXX src/caffe/layers/softmax_layer.cpp
CXX src/caffe/layers/multinomial_logistic_loss_layer.cpp
CXX src/caffe/layers/im2col_layer.cpp
CXX src/caffe/layers/batch_norm_layer.cpp
CXX src/caffe/layers/power_layer.cpp
CXX src/caffe/layers/loss_layer.cpp
CXX src/caffe/layers/neuron_layer.cpp
CXX src/caffe/layers/cudnn_sigmoid_layer.cpp
CXX src/caffe/layers/input_layer.cpp
CXX src/caffe/layers/recurrent_layer.cpp
CXX src/caffe/layers/absval_layer.cpp
CXX src/caffe/layers/softmax_loss_layer.cpp
CXX src/caffe/layers/concat_layer.cpp
CXX src/caffe/layers/cudnn_pooling_layer.cpp
CXX src/caffe/layers/slice_layer.cpp
CXX src/caffe/layers/sigmoid_layer.cpp
CXX src/caffe/layers/memory_data_layer.cpp
CXX src/caffe/layers/rnn_layer.cpp
CXX src/caffe/layers/window_data_layer.cpp
CXX src/caffe/layers/lstm_layer.cpp
CXX src/caffe/layers/accuracy_layer.cpp
CXX src/caffe/layers/relu_layer.cpp
CXX src/caffe/layers/hinge_loss_layer.cpp
CXX src/caffe/layers/crop_layer.cpp
CXX src/caffe/layers/log_layer.cpp
CXX src/caffe/layers/infogain_loss_layer.cpp
CXX src/caffe/layers/data_layer.cpp
CXX src/caffe/layers/flatten_layer.cpp
CXX src/caffe/layers/filter_layer.cpp
CXX src/caffe/layers/reduction_layer.cpp
CXX src/caffe/layers/lstm_unit_layer.cpp
CXX src/caffe/layers/split_layer.cpp
CXX src/caffe/layers/cudnn_conv_layer.cpp
CXX src/caffe/layers/deconv_layer.cpp
CXX src/caffe/layers/inner_product_layer.cpp
CXX src/caffe/layers/lrn_layer.cpp
CXX src/caffe/layers/bnll_layer.cpp
CXX src/caffe/layers/hdf5_data_layer.cpp
CXX src/caffe/layers/base_data_layer.cpp
CXX src/caffe/layers/cudnn_lcn_layer.cpp
CXX src/caffe/layers/pooling_layer.cpp
CXX src/caffe/layers/cudnn_softmax_layer.cpp
CXX src/caffe/layers/cudnn_lrn_layer.cpp
CXX src/caffe/layers/threshold_layer.cpp
CXX src/caffe/layers/batch_reindex_layer.cpp
CXX src/caffe/layers/sigmoid_cross_entropy_loss_layer.cpp
CXX src/caffe/layers/conv_layer.cpp
CXX src/caffe/layers/elu_layer.cpp
CXX src/caffe/layers/embed_layer.cpp
CXX src/caffe/layers/euclidean_loss_layer.cpp
CXX src/caffe/layers/tile_layer.cpp
CXX src/caffe/layers/cudnn_tanh_layer.cpp
CXX src/caffe/layers/silence_layer.cpp
CXX src/caffe/layers/dummy_data_layer.cpp
CXX src/caffe/layers/scale_layer.cpp
CXX src/caffe/layers/prelu_layer.cpp
CXX src/caffe/layers/bias_layer.cpp
CXX src/caffe/layers/dropout_layer.cpp
CXX src/caffe/layers/exp_layer.cpp
CXX src/caffe/layers/contrastive_loss_layer.cpp
CXX src/caffe/layers/reshape_layer.cpp
CXX src/caffe/layers/base_conv_layer.cpp
CXX src/caffe/layers/mvn_layer.cpp
CXX src/caffe/layers/spp_layer.cpp
CXX src/caffe/layers/image_data_layer.cpp
CXX src/caffe/layers/tanh_layer.cpp
CXX src/caffe/layers/argmax_layer.cpp
CXX src/caffe/layers/parameter_layer.cpp
AR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -l -llmdb
collect2: error: ld returned 1 exit status
Makefile:575: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: * [.build_release/lib/libcaffe.so.1.0.0] Error 1
root@esense9:~/.local/install/caffe#

AR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -l -llmdb
collect2: error: ld returned 1 exit status
Makefile:575: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: * [.build_release/lib/libcaffe.so.1.0.0] Error 1

[PENGUINLIONG]

Seems there was nothing wrong. In case you're using Ubuntu, have you tried installing with pre-compiled caffe, or installing lmdb with apt?

[Suraj59]

error gone llmdb but new error are came
aR -o .build_release/lib/libcaffe.a
LD -o .build_release/lib/libcaffe.so.1.0.0
/usr/bin/ld: cannot find -lhdf5_hl
/usr/bin/ld: cannot find -lhdf5
collect2: error: ld returned 1 exit status
Makefile:572: recipe for target '.build_release/lib/libcaffe.so.1.0.0' failed
make: * [.build_release/lib/libcaffe.so.1.0.0] Error 1

[PENGUINLIONG]

Try

apt-get install libhdf5 libhdf5-dev

[srossi93]

If you are working with Ubuntu, you may want to check this issue #156.

This worked for me. Add the following lines in MakeFile.config INCLUDE_DIRS := $(PYTHON_INCLUDE) /usr/local/include /usr/include/hdf5/serial/ and LIBRARY_DIRS := $(PYTHON_LIB) /usr/local/lib /usr/lib /usr/lib/x86_64-linux-gnu/hdf5/serial/

[Noiredd]

Please do not post usage, installation, or modeling questions, or other requests for help to Issues. Use the caffe-users list instead. This helps developers maintain a clear, uncluttered, and efficient view of the state of Caffe. Please read the guidelines for contributing before submitting an issue or a pull request.

Questions about missing libraries have been asked multiple times. Please research the meaning of /usr/bin/ld: cannot find -l<library> message and how to install missing libraries.

[jiayifang1]

/usr/bin/ld: cannot find -l -llmdb
I have the same problem,installing lmdb with apt don't work

[mxy493]

/usr/bin/ld: 找不到 -l -llmdb

So what is the solution?

[Holmestime]

the solution is that use your pip to install lmdb
for example:
pip3 install lmdb