Fehler während des Flatterns Werkzeug aufbauen macOS

Question

Environment

• macOS Sierra 10.12.5
• Flattern alpha 0.0.31 - Rahmen Revision d36e2f6191

Scenario

Bei Installieren von Flutter auf MacOS, ich habe folgende Fehler.

$ git clone -b alpha https://github.com/flutter/flutter.git 
$ export PATH=`pwd`/flutter/bin:$PATH 
$ flutter doctor 
Downloading Dart SDK 1.24.0-dev.6.7... 
    % Total % Received % Xferd Average Speed Time Time  Time Current 
           Dload Upload Total Spent Left Speed 
100 57.9M 100 57.9M 0  0 10.8M  0 0:00:05 0:00:05 --:--:-- 12.0M 

Building flutter tool... 
Failed to precompile coverage:run_and_collect: 
'package:convert/src/hex/encoder.dart': malformed type: line 20 pos 13: cannot resolve class 'ChunkedConverter' from 'HexEncoder' 
    extends ChunkedConverter<List<int>, String, List<int>, String> { 
      ^
Failed to precompile archive:tar: 
'package:convert/src/hex/decoder.dart': malformed type: line 21 pos 13: cannot resolve class 'ChunkedConverter' from 'HexDecoder' 
    extends ChunkedConverter<String, List<int>, String, List<int>> { 
      ^
Failed to precompile coverage:collect_coverage: 
'package:convert/src/hex/decoder.dart': malformed type: line 21 pos 13: cannot resolve class 'ChunkedConverter' from 'HexDecoder' 
    extends ChunkedConverter<String, List<int>, String, List<int>> { 
      ^
Failed to precompile coverage:format_coverage: 
'package:convert/src/hex/encoder.dart': malformed type: line 20 pos 13: cannot resolve class 'ChunkedConverter' from 'HexEncoder' 
    extends ChunkedConverter<List<int>, String, List<int>, String> { 
      ^
'package:convert/src/hex/encoder.dart': malformed type: line 20 pos 13: cannot resolve class 'ChunkedConverter' from 'HexEncoder' 
    extends ChunkedConverter<List<int>, String, List<int>, String> { 
      ^

Answer 1

Ich habe das Problem auf meinem lokalen Computer gefunden.

Convert-2.0.1-Paket war in meinem Pub-Cache falsch. Siehe die folgenden Diffs.

$ /usr/bin/diff -r pub.dartlang.org.bak/convert-2.0.1 pub.dartlang.org/convert-2.0.1/ 
diff -r pub.dartlang.org.bak/convert-2.0.1/lib/src/hex/decoder.dart pub.dartlang.org/convert-2.0.1/lib/src/hex/decoder.dart 
20,21c20 
< class HexDecoder 
<  extends ChunkedConverter<String, List<int>, String, List<int>> { 
--- 
> class HexDecoder extends Converter<String, List<int>> { 
diff -r pub.dartlang.org.bak/convert-2.0.1/lib/src/hex/encoder.dart pub.dartlang.org/convert-2.0.1/lib/src/hex/encoder.dart 
19,20c19 
< class HexEncoder 
<  extends ChunkedConverter<List<int>, String, List<int>, String> { 
--- 
> class HexEncoder extends Converter<List<int>, String> { 
diff -r pub.dartlang.org.bak/convert-2.0.1/lib/src/percent/decoder.dart pub.dartlang.org/convert-2.0.1/lib/src/percent/decoder.dart 
28,29c28 
< class PercentDecoder 
<  extends ChunkedConverter<String, List<int>, String, List<int>> { 
--- 
> class PercentDecoder extends Converter<String, List<int>> { 
diff -r pub.dartlang.org.bak/convert-2.0.1/lib/src/percent/encoder.dart pub.dartlang.org/convert-2.0.1/lib/src/percent/encoder.dart 
22,23c22 
< class PercentEncoder 
<  extends ChunkedConverter<List<int>, String, List<int>, String> { 
--- 
> class PercentEncoder extends Converter<List<int>, String> { 
70a70 
>   (byte >= $0 && byte <= $9) ||