Question

我想为android建立一个离线语音识别应用程序。因为我尝试构建android NDK.But当我给ndk-build命令时我得到以下错误。我不知道这意味着什么，因为我非常Linux环境的新手。任何人请帮助我。

 Android NDK: Could not find application project directory !    
    Android NDK: Please define the NDK_PROJECT_PATH variable to point to it.    
    /home/cenuser/android/android-ndk-r7b/build/core/build-local.mk:130: *** Android NDK: Aborting    .  Stop.

当我改变位置时，我得到了这个

/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:760:26: error: pocketsphinx.h: No such file or directory
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:761:28: error: sphinxbase/err.h: No such file or directory
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'new_Hypothesis':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:780: warning: initialization makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:782: warning: assignment makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:784: warning: assignment makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'new_Config__SWIG_0':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:795: error: 'FALSE' undeclared (first use in this function)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:795: error: (Each undeclared identifier is reported only once
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:795: error: for each function it appears in.)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'new_Config__SWIG_1':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:799: error: 'FALSE' undeclared (first use in this function)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'Config_getString':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:830: warning: return makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'new_Decoder__SWIG_0':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:839: error: 'FALSE' undeclared (first use in this function)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'new_Decoder__SWIG_1':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:843: warning: initialization makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'Decoder_getConfig':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:847: warning: return makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'Decoder_getUttid':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:856: warning: return makes pointer from integer without a cast
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'Decoder_getHyp':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:869: error: 'int32' undeclared (first use in this function)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:869: error: expected ';' before 'best_score'
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:870: error: 'best_score' undeclared (first use in this function)
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c: In function 'Java_edu_cmu_pocketsphinx_pocketsphinxJNI_Decoder_1processRaw_1_1SWIG_10':
/home/cenuser/android/sphinx/PocketSphinxDemo/jni/pocketsphinx_wrap.c:1441: warning: assignment discards qualifiers from pointer target type
make: *** [/home/cenuser/android/sphinx/PocketSphinxDemo/obj/local/armeabi/objs-debug/pocketsphinx_jni/pocketsphinx_wrap.o] Error 1

Answer 1

从终端
使用项目路径输入命令
```
ndk-build -C your_project_path
```

这将解决问题。如果您想了解有关“ndk-build”命令的更多信息，请输入命令

    ndk-build --help

Answer 2

当您从错误的diretory调用ndk-build时，通常会发生这种情况。您必须位于包含jni子目录的文件夹中。

或者执行错误消息告诉您 - 指定NDK_PROJECT_PATH以更正文件夹。

Answer 3

运行ndk-build命令时需要声明该位置的路径 cd 2. ndk-build NDK_PROJECT_PATH =

Answer 4

转到/ build / core
将NDK_PROJECT_PATH更改为应用程序项目路径
打开终端
转到项目文件夹
运行NDK_BUILD

Answer 5

这可以解决如下：我遇到了同样的问题。我正在研究文本识别应用程序。

1- You should go the directory of your folder (which is inside the AndroidStudioProjects - "YOUR PROJECT", 

2- There should be a jni (Java Native interface) folder. Search for this folder. whenever, this is found. 

3- cd in cmd to that folder (The Parent folder of jni).

4- run **ndk-build**

建立android-ndk？

5 个答案: