diff --git a/benchmarks/ShardingCoreBenchmark/ShardingCoreBenchmark.csproj b/benchmarks/ShardingCoreBenchmark/ShardingCoreBenchmark.csproj
index 87ffc59b..824b595a 100644
--- a/benchmarks/ShardingCoreBenchmark/ShardingCoreBenchmark.csproj
+++ b/benchmarks/ShardingCoreBenchmark/ShardingCoreBenchmark.csproj
@@ -12,7 +12,7 @@
-
+
diff --git a/samples/Sample.MultiConfig/Sample.MultiConfig.csproj b/samples/Sample.MultiConfig/Sample.MultiConfig.csproj
index 934d1fa5..3878f57c 100644
--- a/samples/Sample.MultiConfig/Sample.MultiConfig.csproj
+++ b/samples/Sample.MultiConfig/Sample.MultiConfig.csproj
@@ -8,7 +8,7 @@
-
+
diff --git a/samples/Sample.MySql/Sample.MySql.csproj b/samples/Sample.MySql/Sample.MySql.csproj
index ad1f7c4f..597278a7 100644
--- a/samples/Sample.MySql/Sample.MySql.csproj
+++ b/samples/Sample.MySql/Sample.MySql.csproj
@@ -7,7 +7,7 @@
-
+