Android Example编译问题

[enduringstack]

按照这个链接的描述去编译：
https://github.com/Tencent/ncnn/wiki/cmake-%E6%89%93%E5%8C%85-android-sdk
执行：

cmake -DCMAKE_TOOLCHAIN_FILE=../android.toolchain.cmake
-DANDROID_ABI="armeabi-v7a with NEON"
-DANDROID_NATIVE_API_LEVEL=android-8
-DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.8
-DANDROID_STL_FORCE_FEATURES=OFF ..

后，报了这个错误：
/ncnn-master/build# cmake -DCMAKE_TOOLCHAIN_FILE=../android.toolchain.cmake -DANDROID_ABI="armeabi-v7a with NEON" -DANDROID_NATIVE_API_LEVEL=android-8 -DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.8 -DANDROID_STL_FORCE_FEATURES=OFF ..
-- CMAKE_TOOLCHAIN_FILE = /root/chenfuduo/ncnn-master/android.toolchain.cmake
-- CMAKE_INSTALL_PREFIX = /root/chenfuduo/ncnn-master/build/install
CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
-- Configuring incomplete, errors occurred!
See also "/root/chenfuduo/ncnn-master/build/CMakeFiles/CMakeOutput.log".

我的NDK是r10b，ubuntu 14.04，cmake 是3.10，请问还需要配置什么吗？

[nihui]

没有 make ？

[enduringstack]

已解决，换了不是root账号的用户可以了

[nihui]

cmake 3.10 修改了 make 的寻找逻辑，使用 cmake 3.9 应该 ok

[xingjinglu]

export ANDROID_NDK=~/software/android-ndk-r14b
cmake -DCMAKE_TOOLCHAIN_FILE=../android.toolchain.cmake    -DANDROID_ABI="arm64-v8a"  -DANDROID_PLATFORM=android-21 ..
-- CMAKE_TOOLCHAIN_FILE = ~/software/ncnn/android.toolchain.cmake

出现如下错误：
-- CMAKE_TOOLCHAIN_FILE = /search/speech/luxingjing/software/ncnn/android.toolchain.cmake
-- CMAKE_INSTALL_PREFIX = /search/speech/luxingjing/software/ncnn/build-android-aarch64/install
CMake Error at android.toolchain.cmake:623 (message):
Could not find any working toolchain in the NDK. Probably your Android NDK
is broken.
Call Stack (most recent call first):
/usr/local/share/cmake-3.11/Modules/CMakeDetermineSystem.cmake:94 (include)
CMakeLists.txt:15 (project)

CMake Error: CMake was unable to find a build program corresponding to "Unix Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!

[northeastsquare]

在windows8 上编译ncnn android版本，出现这个错误，使用cmake3.9，没有解决问题@nihui

[northeastsquare]

终于好了， 根据这里 https://discourse.urho3d.io/t/android-solved-android-build-on-windows-cmake-error/240/2

把make的文件夹加入path,就可以了
@xingjinglu