java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

Stack Overflow | Hudson Worden | 2 months ago
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    Robolectric IllegalState Exception

    Stack Overflow | 2 months ago | Hudson Worden
    java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
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    Clash when pressed "Using custom tab and background colors"

    GitHub | 5 months ago | honjiaxuan
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bottombar.sample/com.example.bottombar.sample.CustomColorActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
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    Clash when pressed "Using custom tab and background colors"

    GitHub | 5 months ago | honjiaxuan
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bottombar.sample/com.example.bottombar.sample.CustomColorActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
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  5. 0

    Clash when pressed "Using custom tab and background colors"

    GitHub | 5 months ago | honjiaxuan
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.bottombar.sample/com.example.bottombar.sample.CustomColorActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
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    java.lang.IllegalStateException App crashes right away

    Stack Overflow | 5 months ago | Roman Fedoruk
    java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

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Root Cause Analysis

  1. java.lang.IllegalStateException

    You need to use a Theme.AppCompat theme (or descendant) with this activity.

    at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor()
  2. Android v7
    AppCompatActivity.setContentView
    1. android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:340)
    2. android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:309)
    3. android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:273)
    4. android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:136)
    4 frames
  3. com.sr.dd
    MainActivity.onCreate
    1. com.sr.dd.dd_app.screens.main.MainActivity.onCreate(MainActivity.java:87)
    1 frame