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我想知道爲什麼我的Android Studio無法解析AppCompactActivity符號,當我嘗試添加程序兼容性V7庫這import語句cannt導入V7庫
import android.support.v7.app.AppCompatActivity;
顯示了灰色,表示未使用的import語句 和V7和紅色,並說無法解析symbol'v7'
import android.support.v7.app.AppCompatActivity;
public class speech extends AppCompatActivity
build.grade:
compile "com.android.support:support-v4:${androidSupportLibraryVersion}"
compile 'net.sourceforge.htmlcleaner:htmlcleaner:2.18'
compile 'de.cketti.library.changelog:ckchangelog:1.2.1'
compile 'com.github.bumptech.glide:glide:3.6.1'
compile 'com.splitwise:tokenautocomplete:2.0.7'
compile 'de.cketti.safecontentresolver:safe-content-resolver-v14:0.9.0'
compile 'com.squareup.moshi:moshi:1.2.0'
compile "com.jakewharton.timber:timber:${timberVersion}"
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
testCompile "org.robolectric:robolectric:${robolectricVersion}"
testCompile "junit:junit:${junitVersion}"
testCompile "org.mockito:mockito-core:${mockitoVersion}"
testCompile 'org.jsoup:jsoup:1.10.2'
我該如何解決這個問題?
可能重複重新啓動[程序兼容性/添加了Android工作室庫(http://stackoverflow.com/questions/18364135 /程序兼容性加-A-庫與-機器人工作室) –