Question

所以我安装了带有python 2.7的anaconda并安装了Caffe库的所有要求。我确保通过

安装opencv

import cv2

并检查我是否可以从文档中运行几个示例。

现在我下载caffe，正确配置makefile.config并运行make all。我得到了非常奇怪的错误：

make
CXX/LD -o .build_release/tools/upgrade_net_proto_text.bin
/usr/bin/ld: warning: libpng16.so.16, needed by /home/maxkhk/anaconda/lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_create_read_struct@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_interlace_handling@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_IHDR@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_get_io_ptr@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_longjmp_fn@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_gray_to_rgb@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_compression_level@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_bgr@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_filter@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_rgb_to_gray@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_init_io@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_destroy_read_struct@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_swap@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_get_IHDR@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_palette_to_rgb@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_compression_strategy@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_get_tRNS@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_write_info@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_packing@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_read_fn@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_create_info_struct@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_read_end@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_read_update_info@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_write_image@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_write_end@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_expand_gray_1_2_4_to_8@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_create_write_struct@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_read_image@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_read_info@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_strip_alpha@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_write_fn@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_destroy_write_struct@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_error@PNG16_0'
/home/maxkhk/anaconda/lib/libopencv_highgui.so: undefined reference to `png_set_strip_16@PNG16_0'
collect2: error: ld returned 1 exit status
Makefile:560: recipe for target '.build_release/tools/upgrade_net_proto_text.bin' failed
make: *** [.build_release/tools/upgrade_net_proto_text.bin] Error 1

那家伙怎么了？请注意，我最初有一个anaconda3并为它编译了caffe但是成功但我在python3下遇到了很多关于caffe的问题，所以我不得不删除它并尝试使用python 2.7为anaconda设置它。

当然我已经确保libpng16.so.16在anaconda中：

maxkhk@maxkhk-X550DP:~/anaconda$ find -name libpng16.so.16
./pkgs/libpng-1.6.17-0/lib/libpng16.so.16
./lib/libpng16.so.16
maxkhk@maxkhk-X550DP:~/anaconda$

我用Google搜索了错误，但没有找到与caffe有关的任何内容。

Answer 1

我遇到了同样的问题，我通过在Makefile.config中添加-rpath来修复它：

LINKFLAGS := -Wl,-rpath,$(HOME)/anaconda/lib

我认为这是正确的修复，因为它（-rpath）告诉GCC它可以找到其他库（在本例中为opencv）所依赖的库（libjpeg，libpng）。

Answer 2

添加

LINKFLAGS := -Wl,-rpath,$(HOME)/anaconda/lib

在Makefile.config中工作。

使用python 2.7安装在ubuntu for anaconda上的caffe失败，找不到libpng16.so.16

2 个答案: