I/flutter (22300): ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter (22300): The following message was thrown during layout:
I/flutter (22300): A RenderFlex overflowed by 5.0 pixels on the bottom.
I/flutter (22300): 
I/flutter (22300): The overflowing RenderFlex has an orientation of Axis.vertical.
I/flutter (22300): The edge of the RenderFlex that is overflowing has been marked in the rendering with a yellow and
I/flutter (22300): black striped pattern. This is usually caused by the contents being too big for the RenderFlex.
I/flutter (22300): Consider applying a flex factor (e.g. using an Expanded widget) to force the children of the
I/flutter (22300): RenderFlex to fit within the available space instead of being sized to their natural size.
I/flutter (22300): This is considered an error condition because it indicates that there is content that cannot be
I/flutter (22300): seen. If the content is legitimately bigger than the available space, consider clipping it with a
I/flutter (22300): ClipRect widget before putting it in the flex, or using a scrollable container rather than a Flex,
I/flutter (22300): like a ListView.
I/flutter (22300): The specific RenderFlex in question is:
I/flutter (22300):   RenderFlex#326f6 OVERFLOWING
I/flutter (22300):   creator: Column ← Padding ← DecoratedBox ← ConstrainedBox ← Container ← _DatePickerHeader ← Column
I/flutter (22300):   ← SizedBox ← LayoutBuilder ← OrientationBuilder ← DefaultTextStyle ← AnimatedDefaultTextStyle ← ⋯
I/flutter (22300):   parentData: offset=Offset(16.0, 0.0) (can use size)
I/flutter (22300):   constraints: BoxConstraints(w=298.0, h=100.0)
I/flutter (22300):   size: Size(298.0, 100.0)
I/flutter (22300):   direction: vertical
I/flutter (22300):   mainAxisAlignment: center
I/flutter (22300):   mainAxisSize: max
I/flutter (22300):   crossAxisAlignment: start
I/flutter (22300):   textDirection: ltr
I/flutter (22300):   verticalDirection: down
I/flutter (22300): ◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤
I/flutter (22300): ════════════════════════════════════════════════════════════════════════════════════════════════════
Reloaded 1 of 412 libraries in 906ms.

Analyzing flutter_app...
No issues found! (ran in 1.9s)

[✓] Flutter (Channel master, v0.5.8-pre.204, on Mac OS X 10.13.6 17G65, locale zh-Hans-CN)
    • Flutter version 0.5.8-pre.204 at /usr/local/flutter
    • Framework revision ed533e9033 (26 hours ago), 2018-08-01 17:03:47 -0700
    • Engine revision 91ff524e63
    • Dart version 2.0.0-dev.69.4.flutter-08f59e5de3

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.1)
    • Android SDK at /data/Android/android-sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.1
    • ANDROID_HOME = /data/Android/android-sdk
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 9.4.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 9.4.1, Build version 9F2000
    • ios-deploy 1.9.2
    • CocoaPods version 1.5.3

[✓] Android Studio (version 3.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 26.0.1
    • Dart plugin version 173.4700
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[!] IntelliJ IDEA Ultimate Edition (version 2018.1.5)
    • IntelliJ at /Applications/IntelliJ IDEA.app
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • For information about installing plugins, see
      https://flutter.io/intellij-setup/#installing-the-plugins

[✓] VS Code (version 1.25.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 2.16.0

[✓] Connected devices (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

! Doctor found issues in 1 category.