When I try to generate a signed APK, I found this issue :
10:58 Generate Signed APK: Errors while building APK. You can find the errors in the 'Messages' view. No cached version of com.android.tools.lint:lint-gradle:26.1.1 available for offline mode.
this is my android studio details :
Android Studio 3.1.1
Build #AI-173.4697961, built on April 4, 2018
JRE: 1.8.0_152-release-1024-b02 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0
this block for signing the apk :
  buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.releaseconfig
    }
    debug {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'),
                'proguard-rules.pro'
    }
}  signingConfigs {
    releaseconfig {
        keyAlias 'release_key'
        keyPassword 'xxxxx'
        storeFile file('xxxxxx)
        storePassword 'xxxx'
    }
}