error: cannot find symbo import androidx.annotation.Nullable; · Issue #600 · facebookarchive/react-native-fbsdk · GitHub
![cannot find symbol import androidx.annotation.NonNull flutter firebase NonNull AndroidX errror - YouTube cannot find symbol import androidx.annotation.NonNull flutter firebase NonNull AndroidX errror - YouTube](https://i.ytimg.com/vi/eN_bH6Yttx8/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLAqmT4CuOBGHzf2eQwCkKqB4P4OMw)
cannot find symbol import androidx.annotation.NonNull flutter firebase NonNull AndroidX errror - YouTube
![解决方法】AndroidStudio自动完成方法时@androidx.annotation.Nullable/NonNull等找不到_import androidx.annotation.nonnull;找不到nonnull-CSDN博客 解决方法】AndroidStudio自动完成方法时@androidx.annotation.Nullable/NonNull等找不到_import androidx.annotation.nonnull;找不到nonnull-CSDN博客](https://img-blog.csdnimg.cn/2019042911051835.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2o4NDQ5MTEzNQ==,size_16,color_FFFFFF,t_70)
解决方法】AndroidStudio自动完成方法时@androidx.annotation.Nullable/NonNull等找不到_import androidx.annotation.nonnull;找不到nonnull-CSDN博客
![Home Fragment - jjggjgjgjghjghjghghghghghgh - package com.srfood.ui; import android.annotation; - Studocu Home Fragment - jjggjgjgjghjghjghghghghghgh - package com.srfood.ui; import android.annotation; - Studocu](https://d20ohkaloyme4g.cloudfront.net/img/document_thumbnails/0cc5399f160c250b26b2efcc4b7f0906/thumb_1200_1553.png)
Home Fragment - jjggjgjgjghjghjghghghghghgh - package com.srfood.ui; import android.annotation; - Studocu
![Android Studio adds both @androidx.annotation and @android.support. annotation problem - Stack Overflow Android Studio adds both @androidx.annotation and @android.support. annotation problem - Stack Overflow](https://i.stack.imgur.com/RCJXR.png)
Android Studio adds both @androidx.annotation and @android.support. annotation problem - Stack Overflow
![React Native — How to handle an app with both pre-AndroidX and AndroidX dependencies (RN60) | by Gregoire Frileux | ITNEXT React Native — How to handle an app with both pre-AndroidX and AndroidX dependencies (RN60) | by Gregoire Frileux | ITNEXT](https://miro.medium.com/v2/resize:fit:855/1*PeLPYbaucLo8acYbtm-O_A.png)
React Native — How to handle an app with both pre-AndroidX and AndroidX dependencies (RN60) | by Gregoire Frileux | ITNEXT
![Change import android.support.annotation.Nullable; · Issue #73 · vonovak/react-native-add-calendar-event · GitHub Change import android.support.annotation.Nullable; · Issue #73 · vonovak/react-native-add-calendar-event · GitHub](https://user-images.githubusercontent.com/31823903/66640467-a90b7400-ec36-11e9-962a-bd1a8626867c.png)
Change import android.support.annotation.Nullable; · Issue #73 · vonovak/react-native-add-calendar-event · GitHub
![External annotations: Not annotated parameter overrides @NotNull parameter – IDEs Support (IntelliJ Platform) | JetBrains External annotations: Not annotated parameter overrides @NotNull parameter – IDEs Support (IntelliJ Platform) | JetBrains](https://intellij-support.jetbrains.com/hc/user_images/pDKlHakiUxOH2aw6A2YKuA.png)
External annotations: Not annotated parameter overrides @NotNull parameter – IDEs Support (IntelliJ Platform) | JetBrains
![Task :react-native-admob:compileReleaseJavaWithJavac FAILED · Issue #470 · sbugert/react-native-admob · GitHub Task :react-native-admob:compileReleaseJavaWithJavac FAILED · Issue #470 · sbugert/react-native-admob · GitHub](https://user-images.githubusercontent.com/31907722/64875195-31afe800-d66a-11e9-90ce-fd06e535d3e4.png)