“undefined reference to `TIFFReadRGBAStrip@LIBTIFF_4.0'” 问题解决方法

本文链接：https://blog.youkuaiyun.com/Chris_zhangrx/article/details/85245610

本文解决在Caffe安装过程中遇到的与OpenCV和LibTIFF链接错误的问题，通过调整环境变量，注释掉Anaconda路径，确保使用系统自带的Python2的OpenCV，避免库冲突。

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在安装Caffe 的过程中可能会遇到如下问题：

make[1]: *** [examples/CMakeFiles/classification.dir/all] Error 2
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFReadRGBAStrip@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFIsTiled@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFWriteScanline@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFGetField@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFScanlineSize@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFReadEncodedTile@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFReadRGBATile@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFClose@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFRGBAImageOK@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFOpen@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFReadEncodedStrip@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFSetField@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFSetWarningHandler@LIBTIFF_4.0'
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so.2.4.9: undefined reference to `TIFFSetErrorHandler@LIBTIFF_4.0'

这是由于 openCV 库有多个产生的问题，这里我预先安装了 anaconda ，由于默认把 anaconda 的路径已经加到了环境变量中，这里我们还是用系统自带的 python 2 里面的 opencv 比较不容易产生问题，我的解决方法就是：

sudo gedit  ~/.bashrc

然后把最后 Anaconda 的路径前面加 # 给注释掉：

# export PATH=/path/to/anaconda/bin:$PATH

然后：

source ~/.bashrc

为了保险起见，source 完以后可以再注销账户重新登录以下。
尝试 make clean 然后重新编译。