diff --git a/src/io/executor.cpp b/src/io/executor.cpp
index 6b0af3454e0cb9c41633bd793b76250028644abe..d6434b64aa752fd62bc637a882298228d59880b8 100644
--- a/src/io/executor.cpp
+++ b/src/io/executor.cpp
@@ -420,6 +420,6 @@ std::vector<typename Executor<Dtype, P>::Ptype> Executor<Dtype, P>::Predict(
 
 template class Executor<CPU, Precision::FP32>;
 template class Executor<GPU_MALI, Precision::FP32>;
-template class Executor<FPGA, Precision::FP16>;
+template class Executor<FPGA, Precision::FP32>;
 
 }  // namespace paddle_mobile
diff --git a/src/operators/feed_op.h b/src/operators/feed_op.h
index 723747874da8fc8ee2c02eb1be4c89189c2af746..e45ad38fd68cb9b4616b7e363be117e2039c93a9 100644
--- a/src/operators/feed_op.h
+++ b/src/operators/feed_op.h
@@ -29,7 +29,7 @@ class FeedOp : public framework::OperatorBase<DeviceType> {
          std::shared_ptr<framework::Scope> scope)
       : framework::OperatorBase<DeviceType>(type, inputs, outputs, attrs,
                                             scope),
-        param_(inputs, outputs, attrs, *scope) {}
+        param_(inputs, outputs, attrs, scope.get()) {}
   void RunImpl() const { param_.Out()->ShareDataWith(*param_.InputX()); }
 
   void Init() {}
diff --git a/src/operators/kernel/arm/dropout_kernel.cpp b/src/operators/kernel/arm/dropout_kernel.cpp
index af16048a1b4eba2ff36f842b6cf968031989576e..db942b018d7085ca3986533937328101afb08ff9 100644
--- a/src/operators/kernel/arm/dropout_kernel.cpp
+++ b/src/operators/kernel/arm/dropout_kernel.cpp
@@ -14,8 +14,6 @@ limitations under the License. */
 
 #ifdef DROPOUT_OP
 
-#pragma once
-
 #include "operators/kernel/dropout_kernel.h"
 #include <operators/math/transform.h>
 
diff --git a/src/operators/kernel/dropout_kernel.h b/src/operators/kernel/dropout_kernel.h
index 5a3783971959db8fba9ca6b701fb6eb6340fcb3f..3ef6b9dd62d88f012eba3456c676ac0d33bf9e52 100644
--- a/src/operators/kernel/dropout_kernel.h
+++ b/src/operators/kernel/dropout_kernel.h
@@ -17,7 +17,7 @@ limitations under the License. */
 #include "framework/operator.h"
 #include "operators/op_param.h"
 
-#pragma once;
+#pragma once
 
 namespace paddle_mobile {
 namespace operators {
diff --git a/src/operators/kernel/im2sequence_kernel.h b/src/operators/kernel/im2sequence_kernel.h
index cb592613f73d90dae5a7d6e515f8bc091981776e..aa798fd6af5592a062de207714dc9fee2afb93df 100644
--- a/src/operators/kernel/im2sequence_kernel.h
+++ b/src/operators/kernel/im2sequence_kernel.h
@@ -20,13 +20,11 @@ limitations under the License. */
 #include "operators/math/vol2col.h"
 #include "operators/op_param.h"
 
-#pragma once;
+#pragma once
 
 namespace paddle_mobile {
 namespace operators {
 
-using namespace framework;
-
 template <typename DeviceType, typename T>
 class Im2SequenceKernel
     : public framework::OpKernelBase<DeviceType, Im2SequenceParam> {
diff --git a/src/operators/kernel/mali/fushion_fc_kernel.cpp b/src/operators/kernel/mali/fushion_fc_kernel.cpp
index a76c3c46012a758a05cf8f846a15376ad1b9f33c..44a7ce2af62a1d27aff8181f6742bebda1d6d066 100755
--- a/src/operators/kernel/mali/fushion_fc_kernel.cpp
+++ b/src/operators/kernel/mali/fushion_fc_kernel.cpp
@@ -14,8 +14,6 @@ limitations under the License. */
 
 #ifdef FUSION_FC_OP
 
-#pragma once
-
 #include "operators/kernel/fusion_fc_kernel.h"
 
 namespace paddle_mobile {
diff --git a/src/operators/kernel/prelu_kernel.h b/src/operators/kernel/prelu_kernel.h
index 9f5dcb23ee9bf44ffa8bbdd98879d533d07c39f9..15696174377f04ad9a62366e03ded1f2cdcdee9e 100644
--- a/src/operators/kernel/prelu_kernel.h
+++ b/src/operators/kernel/prelu_kernel.h
@@ -15,7 +15,7 @@ limitations under the License. */
 #include "framework/operator.h"
 #include "operators/op_param.h"
 
-#pragma once;
+#pragma once
 
 namespace paddle_mobile {
 namespace operators {
diff --git a/src/operators/kernel/scale_kernel.h b/src/operators/kernel/scale_kernel.h
index cc76a4b59b0be24dd3a3fb82c0e3d9fb1a4dbf24..98ac71d0bbad86f595171ad7ac5b2a1cdf5908fa 100644
--- a/src/operators/kernel/scale_kernel.h
+++ b/src/operators/kernel/scale_kernel.h
@@ -15,7 +15,7 @@ limitations under the License. */
 #include "framework/operator.h"
 #include "operators/op_param.h"
 
-#pragma once;
+#pragma once
 
 namespace paddle_mobile {
 namespace operators {
diff --git a/src/operators/kernel/slice_kernel.h b/src/operators/kernel/slice_kernel.h
index e308364602f401b1c6c6f8e2e35385aefa055360..fd3b8dc767076c5244509f6015c42bee87df100b 100644
--- a/src/operators/kernel/slice_kernel.h
+++ b/src/operators/kernel/slice_kernel.h
@@ -15,7 +15,7 @@ limitations under the License. */
 #include "framework/operator.h"
 #include "operators/op_param.h"
 
-#pragma once;
+#pragma once
 
 namespace paddle_mobile {
 namespace operators {
diff --git a/src/operators/op_param.h b/src/operators/op_param.h
index a1c9baad79df159b1784ef0dd5d12ccf7ed7fe11..dc790ee348e4070bd2891debe21c6f8e7bcdcdf0 100644
--- a/src/operators/op_param.h
+++ b/src/operators/op_param.h
@@ -651,10 +651,10 @@ class MultiClassNMSParam : public OpParam {
 class FeedParam : public OpParam {
  public:
   FeedParam(const VariableNameMap &inputs, const VariableNameMap &outputs,
-            const AttributeMap &attrs, Scope const &scope) {
-    input_x_ = InputXFrom<LoDTensor>(inputs, scope);
-    out_ = OutFrom<LoDTensor>(outputs, scope);
-    auto var = scope.Var("batch_size");
+            const AttributeMap &attrs, Scope *scope) {
+    input_x_ = InputXFrom<LoDTensor>(inputs, *scope);
+    out_ = OutFrom<LoDTensor>(outputs, *scope);
+    auto var = scope->Var("batch_size");
     batch_size = var->GetValue<int>();
   }
   const Tensor *InputX() const { return input_x_; }
diff --git a/test/framework/test_load.cpp b/test/framework/test_load.cpp
index bea7d4ba7d2df1344f0819222fbdb389106fa77e..25cad4feaa706899122902dee2a8f0c915e78975 100644
--- a/test/framework/test_load.cpp
+++ b/test/framework/test_load.cpp
@@ -12,6 +12,8 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
+#include <string>
+
 #include "../test_helper.h"
 #include "io/loader.h"
 
@@ -20,12 +22,10 @@ int main() {
   //  ../../../test/models/googlenet
   //  ../../../test/models/mobilenet
   //  auto program = loader.Load(g_googlenet, true);
+  //  auto program = loader.Load(g_mobilenet_ssd, true);
 
-  auto program = loader.Load(g_mobilenet_ssd, true);
-  //  auto program = loader.Load(g_googlenet_combine + "/model",
-  //  g_googlenet_combine +
-  //    "/params", true);
-
+  auto program = loader.Load(std::string(g_ocr) + "/model",
+                             std::string(g_ocr) + "/params", false);
   //  program.originProgram->Description("program desc: ");
   return 0;
 }
diff --git a/test/test_helper.h b/test/test_helper.h
index 9a5c62c79c44fdf52657ea5facb5f0768810c440..658af447d6cfcd85c68ff350b104c2468d442e40 100644
--- a/test/test_helper.h
+++ b/test/test_helper.h
@@ -24,6 +24,7 @@ limitations under the License. */
 #include "framework/ddim.h"
 #include "framework/tensor.h"
 
+static const char *g_ocr = "../models/ocr";
 static const char *g_mobilenet_ssd = "../models/mobilenet+ssd";
 static const char *g_mobilenet_ssd_gesture = "../models/mobilenet+ssd_gesture";
 static const char *g_squeezenet = "../models/squeezenet";
diff --git a/tools/build.sh b/tools/build.sh
index ced18a180762826ffa2c45949e5aab9bfe5c8f88..bf3545ef162c86c16c0877f5f25f3a1e09de1fd4 100755
--- a/tools/build.sh
+++ b/tools/build.sh
@@ -40,8 +40,8 @@ build_for_android() {
     fi
 
     if [ -z "$PLATFORM" ]; then
-#        PLATFORM="arm-v7a"  # Users could choose "arm-v8a" platform.
-        PLATFORM="arm-v8a"
+        PLATFORM="arm-v7a"  # Users could choose "arm-v8a" platform.
+#        PLATFORM="arm-v8a"
     fi
 
     if [ "${PLATFORM}" = "arm-v7a" ]; then