2 files changed, 2 insertions, 2 deletions
diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index c717401cab..02aae3a67b 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -128,7 +128,7 @@ def GetDependencyList(FileStack, SearchPathList):
 
             if len(FileContent) == 0:
                 continue
-
+            IncludedFileList = []
             if FileContent[0] == 0xff or FileContent[0] == 0xfe:
                 FileContent = str(FileContent, "utf-16")
                 IncludedFileList = gIncludePattern.findall(FileContent)
diff --git a/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py b/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
index 50ffe308aa..fdf7738a31 100644
--- a/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
+++ b/BaseTools/Source/Python/Workspace/WorkspaceDatabase.py
@@ -164,7 +164,7 @@ class WorkspaceDatabase(object):
                 os.remove(DbPath)
 
         # create db with optimized parameters
-        self.Conn = sqlite3.connect(DbPath, isolation_level='DEFERRED')
+        self.Conn = sqlite3.connect(DbPath, isolation_level=None)
         self.Conn.execute("PRAGMA synchronous=OFF")
         self.Conn.execute("PRAGMA temp_store=MEMORY")
         self.Conn.execute("PRAGMA count_changes=OFF")