CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage

Question

When I build an android project which includes ndk code. I got the following error:

Build command failed. 
Error while executing process /home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {-H/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app -B/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/.externalNativeBuild/cmake/debug/armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=/home/gongzelong/Android/Sdk/ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/build/intermediates/cmake/debug/obj/armeabi -DCMAKE_BUILD_TYPE=Debug -DCMAKE_MAKE_PROGRAM=/home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/ninja -DCMAKE_TOOLCHAIN_FILE=/home/gongzelong/Android/Sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-14 -DCMAKE_CXX_FLAGS=} 
/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo 
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage 
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage 
-- Configuring incomplete, errors occurred! 
Build command failed. 
Error while executing process /home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {-H/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app -B/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/.externalNativeBuild/cmake/release/armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=/home/gongzelong/Android/Sdk/ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/build/intermediates/cmake/release/obj/armeabi -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=/home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/ninja -DCMAKE_TOOLCHAIN_FILE=/home/gongzelong/Android/Sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-14 -DCMAKE_CXX_FLAGS=} 
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage 
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage 
-- Configuring incomplete, errors occurred! 

I try to locate the cause.

I found the following:

[email protected]:~/Android/Sdk/cmake/3.6.4111459/bin$ cmake -version
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
/home/gongzelong/Android/Sdk/cmake/3.6.4111459/share/cmake-3.5
cmake version 3.5.1
CMake suite maintained and supported by Kitware (kitware.com/cmake).

It seems that the cmake has separately versions 3.5 and 3.6.

Could anyone point out how to fix it and build the android project successfully?

Update:

I delete the cmake and install it again in android studio sdk manager.

I still got this:

null    
Build command failed.   
Error while executing process /home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {-H/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app -B/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/.externalNativeBuild/cmake/debug/armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=/home/gongzelong/Android/Sdk/ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/build/intermediates/cmake/debug/obj/armeabi -DCMAKE_BUILD_TYPE=Debug -DCMAKE_MAKE_PROGRAM=/home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/ninja -DCMAKE_TOOLCHAIN_FILE=/home/gongzelong/Android/Sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-14 -DCMAKE_CXX_FLAGS=}    
/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo    
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage 
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage   
-- Configuring incomplete, errors occurred! 
Build command failed.   
Error while executing process /home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/cmake with arguments {-H/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app -B/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/.externalNativeBuild/cmake/release/armeabi -GAndroid Gradle - Ninja -DANDROID_ABI=armeabi -DANDROID_NDK=/home/gongzelong/Android/Sdk/ndk-bundle -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/media/gongzelong/TOSHIBA/Code/Code/ImageLoaderEncapsulation/ImageLoader/ImageLoaderDemo/app/build/intermediates/cmake/release/obj/armeabi -DCMAKE_BUILD_TYPE=Release -DCMAKE_MAKE_PROGRAM=/home/gongzelong/Android/Sdk/cmake/3.6.4111459/bin/ninja -DCMAKE_TOOLCHAIN_FILE=/home/gongzelong/Android/Sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-14 -DCMAKE_CXX_FLAGS=}  
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage 
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage   
-- Configuring incomplete, errors occurred! 

Solution 1

It seems like you are using an NDK version that is no more supporting some ABIs (armeabi in you error log), so you have to upgrade build in build.gradle (Project:....) to the latest one

classpath 'com.android.tools.build:gradle:3.1.3'

And in gradle-wraper.properties : distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

And finally, you have to add abiFilters in android block of your build.gradle(Module:app) depending of wich ABIs you need:

android {
 ....
    defaultConfig {
        externalNativeBuild {
            cmake {
                abiFilters 'arm64-v8a', 'armeabi-v7a', 'x86', 'x86_64'
            }
        }
    }
 ....
}

Solution 2

In my case, following changes in build.gradle (Module:app ) help me.

Original

android {
 ....
    defaultConfig {
        externalNativeBuild {
            cmake {
                arguments '-DANDROID_STL=gnustl_static' ... [other args]
            }
        }
    }
 ....
}

With my changes

android {
 android.buildToolsVersion "28.0.3"
 ....
    defaultConfig {
        externalNativeBuild {
            cmake {
                '-DANDROID_STL=c++_static' ... [other args]
            }
        }
    }
 ....
}

Solution 3

I have the same error, and my ndk-bundle is the newest, which is ndk-r18b

CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage  CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage Configuring incomplete, errors occurred!

I fix it by use android-ndk-r14b, you can specify it in local.properties

ndk.dir=/Users/xxxx/Library/Android/sdk/android-ndk-r14b

Of course, you should download r14b first, and unzip it under the sdk folder