Cannot resolve symbol 'tools' and 'GradleException'

Question

I have started to work on an existing project including Android NDK. I have two issues in build.gradle, which is impossible for me to build the app. For your information, my co-worker (who was working on it) was able to build the app.

I have already imported the NDK, from the project structures I can see the correct Android NDK path.

Here is how build.gradle looks like :

import org.apache.tools.ant.taskdefs.condition.Os  buildscript { repositories {     maven { url 'https://maven.fabric.io/public' } }  dependencies {     // The Fabric Gradle plugin uses an open ended version to react     // quickly to Android tooling updates     classpath 'io.fabric.tools:gradle:1.21.5' } } allprojects { repositories {     maven { url "https://jitpack.io" } } } apply plugin: 'com.android.application' apply plugin: 'io.fabric' apply plugin: 'realm-android'  repositories { maven { url 'https://maven.fabric.io/public' } }  android { compileSdkVersion 24 buildToolsVersion "24.0.2" dataBinding{     enabled = true; }  defaultConfig {     applicationId "com.lucien.myapp"     minSdkVersion 16     targetSdkVersion 24     versionCode 1     versionName "1.0.0"      ndk {         moduleName "DSPLib-jni"     } } buildTypes {     release {         minifyEnabled false         proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'     } }  sourceSets.main.jni.srcDirs = [] // disable automatic ndk-build call, which ignore our Android.mk sourceSets.main.jniLibs.srcDir 'src/main/libs'  // call regular ndk-build(.cmd) script from app directory task ndkBuild(type: Exec) {     workingDir file('src/main')     commandLine getNdkBuildCmd() }  tasks.withType(JavaCompile) {     compileTask -> compileTask.dependsOn ndkBuild }  task cleanNative(type: Exec) {     workingDir file('src/main')     commandLine getNdkBuildCmd(), 'clean' }  clean.dependsOn cleanNative  }  dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) testCompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:24.2.0' compile 'com.android.support:design:24.2.0' compile 'com.android.support:support-v4:24.2.0'  compile 'com.github.PhilJay:MPAndroidChart:v2.2.5' compile 'com.orhanobut:dialogplus:1.11@aar' compile('com.crashlytics.sdk.android:crashlytics:2.6.2@aar') {     transitive = true; } compile 'com.squareup.retrofit2:retrofit:2.1.0' compile 'com.squareup.retrofit2:converter-gson:2.0.2' compile 'com.google.code.gson:gson:2.7'  }  def getNdkDir() { if (System.env.ANDROID_NDK_ROOT != null)     return System.env.ANDROID_NDK_ROOT  Properties properties = new Properties() properties.load(project.rootProject.file('local.properties').newDataInputStream()) def ndkdir = properties.getProperty('ndk.dir', null) if (ndkdir == null)     throw new GradleException("NDK location not found. Define location with ndk.dir in the local.properties file or with an ANDROID_NDK_ROOT environment variable.")  return ndkdir  }  def getNdkBuildCmd() { def ndkbuild = getNdkDir() + "/ndk-build" if (Os.isFamily(Os.FAMILY_WINDOWS))     ndkbuild += ".cmd"  return ndkbuild  } 

I have an issue with the first line, trying to import "org.apache.tools.ant.taskdefs.condition.Os" : Cannot resolve symbol 'tools'

And the same kind of issue for "throw new GradleException("...")"

Do I need to update something in my build.gradle ? Or the issue is somewhere else ?

Thanks !

Answer 1

You can use any other available exceptions from java like:

throw new FileNotFoundException("Could not read version.properties!") 

Answer 2

To fix this, just change GradleException() to FileNotFoundException()

throw new FileNotFoundException("NDK location not found...") 

instead of

throw new GradleException("NDK location not found...")