diff --git a/NewLife.Core/NewLife.Core.csproj b/NewLife.Core/NewLife.Core.csproj
index 4e65bc1a5..3182f209f 100644
--- a/NewLife.Core/NewLife.Core.csproj
+++ b/NewLife.Core/NewLife.Core.csproj
@@ -77,7 +77,7 @@
-
+
diff --git a/Samples/Zero.EchoServer/Zero.EchoServer.csproj b/Samples/Zero.EchoServer/Zero.EchoServer.csproj
index 065a28fed..6001c50f1 100644
--- a/Samples/Zero.EchoServer/Zero.EchoServer.csproj
+++ b/Samples/Zero.EchoServer/Zero.EchoServer.csproj
@@ -20,7 +20,7 @@
-
+
diff --git a/Samples/Zero.HttpServer/Zero.HttpServer.csproj b/Samples/Zero.HttpServer/Zero.HttpServer.csproj
index fae7ce6bf..eb5a3ef9b 100644
--- a/Samples/Zero.HttpServer/Zero.HttpServer.csproj
+++ b/Samples/Zero.HttpServer/Zero.HttpServer.csproj
@@ -21,7 +21,7 @@
-
+
diff --git a/Samples/Zero.Server/Zero.Server.csproj b/Samples/Zero.Server/Zero.Server.csproj
index db463f9fc..798d07d71 100644
--- a/Samples/Zero.Server/Zero.Server.csproj
+++ b/Samples/Zero.Server/Zero.Server.csproj
@@ -21,7 +21,7 @@
-
+
diff --git a/Test/Test.csproj b/Test/Test.csproj
index f3b4d5fe0..a37e8439c 100644
--- a/Test/Test.csproj
+++ b/Test/Test.csproj
@@ -25,8 +25,8 @@
-
-
+
+
diff --git a/Test2/Test2.csproj b/Test2/Test2.csproj
index ff34fbe08..b9779ad21 100644
--- a/Test2/Test2.csproj
+++ b/Test2/Test2.csproj
@@ -24,7 +24,7 @@
-
+