diff --git a/build.sh b/build.sh
index c0f23985..0c3cb7f2 100755
--- a/build.sh
+++ b/build.sh
@@ -44,6 +44,9 @@ echo ${prefix2}
 
 
 cd ./build/linux/HGBase
+rm -f Makefile
+rm -rf obj
+rm HGBaseTmp.cbp
 cp HGBase.cbp HGBaseTmp.cbp
 sed -i "s/release\/${system}\/${arch}\/HGBase/release\/${system}\/${arch}\/${prefix}Base/g" HGBaseTmp.cbp
 cbp2make -targets ${system}_${arch}_Release -in HGBaseTmp.cbp -out makefile
@@ -55,9 +58,15 @@ if [ $? -ne 0 ];then
 else
    echo "--------------------------------------Base.so make succeed------------------------------------"
 fi
+rm -f Makefile
+rm -rf obj
+rm HGBaseTmp.cbp
 
 
 cd ../HGImgFmt
+rm -f Makefile
+rm -rf obj
+rm HGImgFmtTmp.cbp
 cp HGImgFmt.cbp HGImgFmtTmp.cbp
 sed -i "s/release\/${system}\/${arch}\/HGImgFmt/release\/${system}\/${arch}\/${prefix}ImgFmt/g" HGImgFmtTmp.cbp
 sed -i "s/-lHGBase/-l${prefix}Base/g" HGImgFmtTmp.cbp
@@ -70,8 +79,14 @@ if [ $? -ne 0 ];then
 else
    echo "--------------------------------------ImgFmt.so make succeed------------------------------------"
 fi
+rm -f Makefile
+rm -rf obj
+rm HGImgFmtTmp.cbp
 
 cd ../HGImgProc
+rm -f Makefile
+rm -rf obj
+rm HGImgProcTmp.cbp
 cp HGImgProc.cbp HGImgProcTmp.cbp
 sed -i "s/release\/${system}\/${arch}\/HGImgProc/release\/${system}\/${arch}\/${prefix}ImgProc/g" HGImgProcTmp.cbp
 sed -i "s/-lHGBase/-l${prefix}Base/g" HGImgProcTmp.cbp
@@ -85,6 +100,9 @@ if [ $? -ne 0 ];then
 else
    echo "--------------------------------------ImgProc.so make succeed------------------------------------"
 fi
+rm -f Makefile
+rm -rf obj
+rm HGImgProcTmp.cbp
 
 if [ "${1}" == "hgweb" ] || [ "${1}" == "hwweb" ] || [ "${1}" == "lscweb" ]; then