title: Crashlytics NDK 2.0.1 doesn't log native crashes
body: <p>I'm trying to migrate Crashlytics <code>2.6.7 -&gt; 2.8.0</code> and Crashlytics NDK <code>1.1.6 -&gt; 2.0.1</code></p>
  
  <p>But I encountered the issue that each time my app is restarted after native crash, Crashlytics writes to logcat something like this:</p>
  
  <blockquote>
  12-18 19:48:33.499 11678-11717/? W/CrashlyticsCore: No minidump data found in directory /data/data/com.example.app/files/.Fabric/com.crashlytics.sdk.android.crashlytics-ndk/native/1513601249792
  </blockquote>
  
  <p>and I don't see any info about the crash in my dashboard. At the same time, Java crashes are successfully logged and appear in the dashboard.<br><br></p>
  
  <p>My build.gradle:</p>
  
  <pre><code>apply plugin: 'io.fabric'
  
  crashlytics {
      enableNdk true
  }
  
  dependencies {
      compile('com.crashlytics.sdk.android:crashlytics:2.8.0@aar') {
          transitive = true;
      }
  
      compile('com.crashlytics.sdk.android:crashlytics-ndk:2.0.1@aar') {
          transitive = true
      }
  }
  </code></pre>
  
  <p>The C++ code I'm using for test (there is SIGSEGV should be thrown):</p>
  
  <pre><code>if(_stream)
      {
          delete _stream;
          _stream-&gt;close();
          _stream=NULL;
      }
  </code></pre>
  
  <p>What I need to change to make it work?</p>