java.lang.RuntimeException: Unable to start activity ComponentInfo{pt.isec.tp.am/pt.isec.tp.am.MyPreferencesActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content

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Root Cause Analysis

  1. java.lang.RuntimeException

    Unable to start activity ComponentInfo{pt.isec.tp.am/pt.isec.tp.am.MyPreferencesActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content

    at android.app.ActivityThread.performLaunchActivity()
  2. Android Platform
    ActivityThread.handleLaunchActivity
    1. android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2543)
    2. android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2609)
    2 frames