diff --git a/Platform/GD32F1x0/Build.cs b/Platform/GD32F1x0/Build.cs
index ed469035..fe757ab6 100644
--- a/Platform/GD32F1x0/Build.cs
+++ b/Platform/GD32F1x0/Build.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Platform/STM32F0/Build.cs b/Platform/STM32F0/Build.cs
index b5454d9d..5f36f07c 100644
--- a/Platform/STM32F0/Build.cs
+++ b/Platform/STM32F0/Build.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M0+";
diff --git a/Platform/STM32F1/Build.cs b/Platform/STM32F1/Build.cs
index b141949b..52783d17 100644
--- a/Platform/STM32F1/Build.cs
+++ b/Platform/STM32F1/Build.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Platform/STM32F1/Build_GCC.cs b/Platform/STM32F1/Build_GCC.cs
index 6d7a7316..e4c6cc68 100644
--- a/Platform/STM32F1/Build_GCC.cs
+++ b/Platform/STM32F1/Build_GCC.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("GCCArm");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Platform/STM32F4/Build.cs b/Platform/STM32F4/Build.cs
index ac8fc70a..76396fc9 100644
--- a/Platform/STM32F4/Build.cs
+++ b/Platform/STM32F4/Build.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M4F";
diff --git a/Platform/STM32F4/Build_GCC.cs b/Platform/STM32F4/Build_GCC.cs
index 0fc46f90..e10f53ea 100644
--- a/Platform/STM32F4/Build_GCC.cs
+++ b/Platform/STM32F4/Build_GCC.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("GCCArm");
 build.Init(false);
 build.CPU = "Cortex-M4";
diff --git a/Tool/Build_SmartOS_F1.cs b/Tool/Build_SmartOS_F1.cs
index eadbb95e..8aa12d4d 100644
--- a/Tool/Build_SmartOS_F1.cs
+++ b/Tool/Build_SmartOS_F1.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M0.cs b/Tool/Build_SmartOS_M0.cs
index 094cf2cf..e966bb86 100644
--- a/Tool/Build_SmartOS_M0.cs
+++ b/Tool/Build_SmartOS_M0.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M0+";
diff --git a/Tool/Build_SmartOS_M3.cs b/Tool/Build_SmartOS_M3.cs
index 6e417314..18cae618 100644
--- a/Tool/Build_SmartOS_M3.cs
+++ b/Tool/Build_SmartOS_M3.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M3_CLang.cs b/Tool/Build_SmartOS_M3_CLang.cs
index 19cffa53..a27011e4 100644
--- a/Tool/Build_SmartOS_M3_CLang.cs
+++ b/Tool/Build_SmartOS_M3_CLang.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK6");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M3_GCC.cs b/Tool/Build_SmartOS_M3_GCC.cs
index b7c97c64..77011f40 100644
--- a/Tool/Build_SmartOS_M3_GCC.cs
+++ b/Tool/Build_SmartOS_M3_GCC.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("GCCArm");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M3_ICC.cs b/Tool/Build_SmartOS_M3_ICC.cs
index 09293831..07353ac9 100644
--- a/Tool/Build_SmartOS_M3_ICC.cs
+++ b/Tool/Build_SmartOS_M3_ICC.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("ICC");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M3_Linux.cs b/Tool/Build_SmartOS_M3_Linux.cs
index 387b9537..86492945 100644
--- a/Tool/Build_SmartOS_M3_Linux.cs
+++ b/Tool/Build_SmartOS_M3_Linux.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M3";
diff --git a/Tool/Build_SmartOS_M4.cs b/Tool/Build_SmartOS_M4.cs
index 2360414b..17bd7dd8 100644
--- a/Tool/Build_SmartOS_M4.cs
+++ b/Tool/Build_SmartOS_M4.cs
@@ -1,3 +1,5 @@
+using NewLife.Build;
+
 var build = Builder.Create("MDK");
 build.Init(false);
 build.CPU = "Cortex-M4F";