Issue 1:
Flutter crash report; please file at https://github.com/flutter/flutter/issues.

command

flutter run

exception

FormatException: FormatException: Bad UTF-8 encoding 0xc3 (at offset 171)

#0 _Utf8Decoder.convert (dart:convert/utf.dart:490)
#1 _Utf8ConversionSink.addSlice (dart:convert/string_conversion.dart:345)
#2 _Utf8ConversionSink.add (dart:convert/string_conversion.dart:341)
#3 _ConverterStreamEventSink.add (dart:convert/chunked_conversion.dart:86)
#4 _SinkTransformerStreamSubscription._handleData (dart:async/stream_transformers.dart:120)
#5 _rootRunUnary (dart:async/zone.dart:1134)
#6 _CustomZone.runUnary (dart:async/zone.dart:1031)
#7 _CustomZone.runUnaryGuarded (dart:async/zone.dart:933)
#8 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:330)
#9 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:257)
#10 _StreamController&&_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:763)
#11 _StreamController._add (dart:async/stream_controller.dart:639)
#12 _StreamController.add (dart:async/stream_controller.dart:585)
#13 _Socket._onData (dart:io-patch/socket_patch.dart:1654)
#14 _rootRunUnary (dart:async/zone.dart:1138)
#15 _CustomZone.runUnary (dart:async/zone.dart:1031)
#16 _CustomZone.runUnaryGuarded (dart:async/zone.dart:933)
#17 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:330)
#18 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:257)
#19 _StreamController&&_SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:763)
#20 _StreamController._add (dart:async/stream_controller.dart:639)
#21 _StreamController.add (dart:async/stream_controller.dart:585)
#22 new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1231)
#23 _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:784)
#24 _microtaskLoop (dart:async/schedule_microtask.dart:41)
#25 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50)
#26 _runPendingImmediateCallback (dart:isolate-patch/dart:isolate/isolate_patch.dart:113)
#27 _RawReceivePortImpl._handleMessage (dart:isolate-patch/dart:isolate/isolate_patch.dart:166)

flutter doctor

[✓] Flutter (Channel beta, v0.1.5, on Microsoft Windows [Version 10.0.16299.125], locale zh-CN)
• Flutter version 0.1.5 at C:\Users\chilkey\flutter
• Framework revision 3ea4d06340 (4 weeks ago), 2018-02-22 11:12:39 -0800
• Engine revision ead227f118
• Dart version 2.0.0-dev.28.0.flutter-0b4f01f759

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)
• Android SDK at C:\Users\chilkey\AppData\Local\Android\Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-27, build-tools 27.0.3
• ANDROID_HOME = C:\Users\chilkey\AppData\Local\Android\Sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b01)

[✓] Android Studio (version 3.0)
• Android Studio at C:\Program Files\Android\Android Studio
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b01)

[✓] IntelliJ IDEA Ultimate Edition (version 2017.2)
• Flutter plugin version 20.0.2
• Dart plugin version 172.4343.25

[✓] VS Code (version 1.21.1)
• VS Code at C:\Program Files\Microsoft VS Code
• Dart Code extension version 2.10.0

[✓] Connected devices (1 available)
• m2 • 88UFBME24EHD • android-arm64 • Android 5.1 (API 22)

• No issues found!

Issue 2:
~/Code/flutter/examples/material_gallery[master] $ flutter --version
Flutter on channel master (from git@github.com:flutter/flutter.git)
Framework revision c167efc (10 minutes ago); engine revision 4062813

Output:

~/Code/flutter/examples/material_gallery[master] $ flutter build apk && flutter install
Building APK in debug mode (android-arm)...
Warning: signing the APK using the debug keystore.
Built build/app.apk (19.6MB).
Installing app.apk to Nexus 5...
Installing app.apk on device.

Notice the "Installing app.apk" and "Installing app.apk"