Android NDK编译常见错误及解决方案

转自：http://chinavideo.org/forum.php?mod=viewthread&tid=10821&page=1

Error 1:

$ ndk-build

/cygdrive/c/andy/abc/obj/local/armeabi-v7a/objs/abc//hellow.o.d:1: *** multiple
target patterns. Stop.

quick fix: Delete Obj folder from “C:\andy\prjM\obj\local\armeabi-v7a” then run ndk-build

or refer this

Error 2:

Android.mk:44: *** commands
commence before first target. Stop.

fix: Check there are no comments,no space ,no empty line in the src includes of Android.mk

For example:

wrong:

LOCAL_SRC_FILES :=file1.cpp\

file1al.cpp\

#file1atures.cpp\

file1r.cpp\

file1le.cpp\

Satfile1.cpp\

Sfile1l.cpp\

file1e.cpp\

Sfile1face.cpp\

复制代码

3rd line has #, 4th line has space(check with cursor),5th line is empty line

Right:

LOCAL_SRC_FILES :=file1.cpp\

file1al.cpp\

file1atures.cp\

file1r.cpp\

file1le.cpp\

Satfile1.cpp\

Sfile1l.cpp\

file1e.cpp\

Sfile1face.cpp\

复制代码

Error 3:

$ ndk-build clean

Android NDK: Could not find application project directory !

Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.

/cygdrive/c/android-ndk-r4b/build/core/build-local.mk:85: *** Android
NDK: Aborting . Stop.

Fix: include Android.mk location inside global application.mk and Android.mk

Run the command from the parent directory with app.mk and and.mk resides

Error 4:

Please define ANDROID_NDK_ROOT to point to the root of your Android NDK installation.

Use case while executing shell script xxx-desktop:~/bin/u/android-ndk-r5/build/tools$ ./rebuild-all-prebuilt.sh

Please define ANDROID_NDK_ROOT to point to the root of your Android NDK installation.

// Run the script inside NDK root directory like shown below

xxx-desktop:~/bin/u/android-ndk-r5/build/tools$ cd ..

xxx-desktop:~/bin/u/android-ndk-r5/build$ cd ..

xxxx-desktop:~/bin/u/android-ndk-r5$ ./build/tools/rebuild-all-prebuilt.sh

Error 5: NDK r5 app(native-activity,native-audio,native-plasma) build problem Compiling native-activity,native-audio,native-plasma on ndk-r5 give
compile errors stating header not found and so on ……

Quick fix: Rebuild all prebuilt

i;e execute shell script rebuild-all-prebuilt.sh to build on latest toolchain provided by android which will take for a while (atleast on my pc)

xxx-desktop:~/bin/u/android-ndk-r5$ ./build/tools/rebuild-all-prebuilt.sh

To follow build in another terminal, please use: tail -F /tmp/ndk-toolchain/build-CtAG7s/log.txt

Download sources from android.git.kernel.org

Using git clone prefix: git://android.git.kernel.org/toolchain

downloading sources for toolchain/binutils

downloading sources for toolchain/build

downloading sources for toolchain/gcc

downloading sources for toolchain/gdb

downloading sources for toolchain/gmp

downloading sources for toolchain/gold

downloading sources for toolchain/mpfr

Patching toolchain sources

Toolchain sources downloaded and copied to /tmp/ndk-toolchain/build-CtAG7s/src

Cleaning up...

Done.

Building arm-eabi-4.4.0 toolchain... (this can be long)

ERROR: Could bot build arm-eabi-4.4.0 toolchain!

xxxx-desktop:~/bin/u/android-ndk-r5$

Now change to native-activity folder and call ndk-build for successful libnative-activity.so

xxx-desktop:~/bin/u/android-ndk-r5/samples/native-activity$ ndk-build

Compile thumb : native-activity <= main.c

Compile thumb : android_native_app_glue <= android_native_app_glue.c

StaticLibrary : libandroid_native_app_glue.a

SharedLibrary : libnative-activity.so

Install : libnative-activity.so => libs/armeabi/libnative-activity.so