Check for presence of an asset directory before accessing it (#12790)

Fixes https://github.com/flutter/flutter/issues/12460

Check for presence of an asset directory before accessing it (#12790)
Fixes https://github.com/flutter/flutter/issues/12460
cb2cfac0 · Jason Simmons · GitHub · 1affb423 · cb2cfac0
Unverified Commit cb2cfac0 authored Oct 31, 2017 by Jason Simmons Committed by GitHub Oct 31, 2017
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asset.dart packages/flutter_tools/lib/src/asset.dart +3 -0

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--- a/packages/flutter_tools/lib/src/asset.dart
+++ b/packages/flutter_tools/lib/src/asset.dart
@@ -446,6 +446,9 @@ class _AssetDirectoryCache {
    final String assetName = fs.path.basename(assetPath);
    final String directory = fs.path.dirname(assetPath);

+    if (!fs.directory(directory).existsSync())
+      return const <String>[];
+
    if (_cache[directory] == null) {
      final List<String> paths = <String>[];
      for (FileSystemEntity entity in fs.directory(directory).listSync(recursive: true)) {