diff --git a/core/src/wrapper/gpu/GPUVecImpl.cpp b/core/src/wrapper/gpu/GPUVecImpl.cpp
index 99fa7589d1..167a4d6a98 100644
--- a/core/src/wrapper/gpu/GPUVecImpl.cpp
+++ b/core/src/wrapper/gpu/GPUVecImpl.cpp
@@ -16,7 +16,6 @@
 // under the License.
 
 #include "wrapper/gpu/GPUVecImpl.h"
-#include <src/wrapper/WrapperException.h>
 #include "knowhere/common/Exception.h"
 #include "knowhere/index/vector_index/IndexGPUIDMAP.h"
 #include "knowhere/index/vector_index/IndexGPUIVF.h"
@@ -26,6 +25,7 @@
 #include "src/wrapper/DataTransfer.h"
 #include "utils/Log.h"
 #include "wrapper/VecImpl.h"
+#include "wrapper/WrapperException.h"
 
 /*
  * no parameter check in this layer.
@@ -60,7 +60,6 @@ IVFMixIndex::BuildAll(const int64_t& nb, const float* xb, const int64_t* ids, co
     } catch (knowhere::KnowhereException& e) {
         WRAPPER_LOG_ERROR << e.what();
         throw WrapperException(e.what());
-        return Status(KNOWHERE_UNEXPECTED_ERROR, e.what());
     } catch (std::exception& e) {
         WRAPPER_LOG_ERROR << e.what();
         return Status(KNOWHERE_ERROR, e.what());
diff --git a/core/unittest/db/test_db.cpp b/core/unittest/db/test_db.cpp
index 6c14b86b39..8d05ae9923 100644
--- a/core/unittest/db/test_db.cpp
+++ b/core/unittest/db/test_db.cpp
@@ -295,6 +295,15 @@ TEST_F(DBTest, SEARCH_TEST) {
         ASSERT_TRUE(stat.ok());
     }
 
+    {  // search by specify index file
+        milvus::engine::meta::DatesT dates;
+        std::vector<std::string> file_ids = {"1", "2", "3", "4", "5", "6"};
+        milvus::engine::ResultIds result_ids;
+        milvus::engine::ResultDistances result_distances;
+        stat = db_->QueryByFileID(TABLE_NAME, file_ids, k, nq, 10, xq.data(), dates, result_ids, result_distances);
+        ASSERT_TRUE(stat.ok());
+    }
+
     index.engine_type_ = (int)milvus::engine::EngineType::FAISS_IVFFLAT;
     db_->CreateIndex(TABLE_NAME, index);  // wait until build index finish
 
@@ -349,15 +358,6 @@ TEST_F(DBTest, SEARCH_TEST) {
         ASSERT_TRUE(stat.ok());
     }
 
-    {  // search by specify index file
-        milvus::engine::meta::DatesT dates;
-        std::vector<std::string> file_ids = {"1", "2", "3", "4", "5", "6"};
-        milvus::engine::ResultIds result_ids;
-        milvus::engine::ResultDistances result_distances;
-        stat = db_->QueryByFileID(TABLE_NAME, file_ids, k, nq, 10, xq.data(), dates, result_ids, result_distances);
-        ASSERT_TRUE(stat.ok());
-    }
-
 #ifdef CUSTOMIZATION
     // test FAISS_IVFSQ8H optimizer
     index.engine_type_ = (int)milvus::engine::EngineType::FAISS_IVFSQ8H;