最近调试一款新的机型时，出现"此应用专为旧版Android打造，因此可能无法正常运行。请尝试检查更新或与开发者联系"提示，出现这种错误的原因：

应用启动，startActivity时，流程会执行到realStartActivityLocked方法，代码位于ActivityStackSupervisor.java

realStartActivityLocked方法中，会调用AppWarnings.java的onStartActivity方法，如下：

final boolean realStartActivityLocked(ActivityRecord r, ProcessRecord app, boolean andResume, boolean checkConfig) throws RemoteException {
    try {
        // ...
        mService.getAppWarningsLocked().onStartActivity(r);
        // ...
    } catch (RemoteException e) {
        // ...
    }
}

onStartActivity方法实现：

/**
   * Called when an activity is being started.
   *
   * @param r record for the activity being started
   */
public void onStartActivity(ActivityRecord r) {
    showUnsupportedCompileSdkDialogIfNeeded(r);
    showUnsupportedDisplaySizeDialogIfNeeded(r);
    showDeprecatedTarge