diff --git a/.gitignore b/.gitignore
index 99c0d01..ac9c931 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,7 +28,7 @@ __pycache__
 **/.idea/modules.xml
 **/.idea/dictionaries
 **/.idea/watcherTasks.xml
-**/.idea/codeStyleSettings.xml
+**/.idea/codeStyles
 **/.idea/inspectionProfiles
 **/.idea/vcs.xml
 
diff --git a/build.sh b/build.sh
deleted file mode 100755
index 8a4dde1..0000000
--- a/build.sh
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/bin/bash
-
-#---------------------------------------------------------------
-# README
-#
-# pleas copy build.sh.in to build.sh and change the following
-# two lines to fit your env.
-#
-# Recommend to download miniconda from
-#   https://conda.io/miniconda.html
-# and install it, root priviledge is not necessary.
-#---------------------------------------------------------------
-PATH_PYTHON_LINUX=/home/apex/miniconda3
-PATH_PYTHON_MACOS=/path/of/your/python/installation
-
-################################################################
-# DO NOT TOUCH FOLLOWING CODE
-################################################################
-
-PATH_ROOT=$(cd "$(dirname "$0")"; pwd)
-
-function on_error()
-{
-	echo -e "\033[01m\033[31m"
-	echo "==================[ !! ERROR !! ]=================="
-	echo ""
-	echo -e $1
-	echo ""
-	echo "==================================================="
-	echo -e "\033[0m"
-	exit 1
-}
-
-function check_python
-{
-	if [ ! -f "${PYSTATIC}" ]; then
-    	on_error "python not found."
-	fi
-}
-
-function build_linux
-{
-    PATH_PYTHON=${PATH_PYTHON_LINUX}
-	PYEXEC=${PATH_PYTHON}/bin/python3.7
-	PYSTATIC=${PATH_PYTHON}/lib/libpython3.7m.a
-
-    check_python
-
-	${PYEXEC} -B "${PATH_ROOT}/build/build.py" $@
-}
-
-function build_macos
-{
-    PATH_PYTHON=${PATH_PYTHON_LINUX}
-	PYEXEC=${PATH_PYTHON}/bin/python3.7
-	PYSTATIC=${PATH_PYTHON}/lib/libpython3.7m.a
-
-    check_python
-
-	${PYEXEC} -B "${PATH_ROOT}/build/build.py" $@
-}
-
-SYSTEM=`uname -s`
-if [ $SYSTEM = "Linux" ] ; then
-	build_linux
-elif [ $SYSTEM = "Darwin" ] ; then   
-	build_macos
-else 
-	echo "Unsupported platform."
-fi
-