Version 1.19.0-dev.6.1

Cherry-pick ea1b511e236fcedd4eaf214ecfcffa52eb1334bb to dev
diff --git a/pkg/analyzer/lib/src/summary/summary_file_builder.dart b/pkg/analyzer/lib/src/summary/summary_file_builder.dart
index 682973c..c9c835e 100644
--- a/pkg/analyzer/lib/src/summary/summary_file_builder.dart
+++ b/pkg/analyzer/lib/src/summary/summary_file_builder.dart
@@ -116,8 +116,8 @@
     // Prepare SDK.
     //
     ResourceProvider resourceProvider = PhysicalResourceProvider.INSTANCE;
-    FolderBasedDartSdk sdk = new FolderBasedDartSdk(resourceProvider,
-        FolderBasedDartSdk.defaultSdkDirectory(resourceProvider), strongMode);
+    FolderBasedDartSdk sdk = new FolderBasedDartSdk(
+        resourceProvider, resourceProvider.getFolder(sdkPath), strongMode);
     sdk.useSummary = false;
     sdk.analysisOptions = new AnalysisOptionsImpl()..strongMode = strongMode;
 
diff --git a/tools/VERSION b/tools/VERSION
index 5085af9..525de60 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -28,4 +28,4 @@
 MINOR 19
 PATCH 0
 PRERELEASE 6
-PRERELEASE_PATCH 0
+PRERELEASE_PATCH 1