diff --git a/examples/export/export.sh b/examples/export/export.sh
index 7c147f783..71f7ff957 100755
--- a/examples/export/export.sh
+++ b/examples/export/export.sh
@@ -133,65 +133,67 @@ echo "Exporting..."
 
 # Export Unity Assets
 UNITY_BASE_DIR=../spine-unity
-echo "Cleaning Unity export directories ..."
-rm -rf $UNITY_BASE_DIR/eyes/export/*
-rm -rf $UNITY_BASE_DIR/footsoldier/export/*
-rm -rf $UNITY_BASE_DIR/gauge/export/*
-rm -rf $UNITY_BASE_DIR/raggedyspineboy/export/*
-rm -rf $UNITY_BASE_DIR/spineboy-unity/export/*
-rm -rf $UNITY_BASE_DIR/spineunitygirl/export/*
-rm -rf $UNITY_BASE_DIR/whirlyblendmodes/export/*
+if [ -d "$UNITY_BASE_DIR" ]; then
+    echo "Cleaning Unity export directories ..."
+    rm -rf $UNITY_BASE_DIR/eyes/export/*
+    rm -rf $UNITY_BASE_DIR/footsoldier/export/*
+    rm -rf $UNITY_BASE_DIR/gauge/export/*
+    rm -rf $UNITY_BASE_DIR/raggedyspineboy/export/*
+    rm -rf $UNITY_BASE_DIR/spineboy-unity/export/*
+    rm -rf $UNITY_BASE_DIR/spineunitygirl/export/*
+    rm -rf $UNITY_BASE_DIR/whirlyblendmodes/export/*
 
-echo ""
-echo "Exporting Unity Assets..."
-"$SPINE_EXE" \
--u $version -f \
--i $UNITY_BASE_DIR/eyes/eyes.spine -o $UNITY_BASE_DIR/eyes/export -e json.json \
--i $UNITY_BASE_DIR/eyes/eyes.spine -o $UNITY_BASE_DIR/eyes/export -e binary.json \
--i $UNITY_BASE_DIR/eyes/images -o $UNITY_BASE_DIR/eyes/export -n eyes -p atlas-1.0.json \
--i $UNITY_BASE_DIR/eyes/images -o $UNITY_BASE_DIR/eyes/export -n eyes-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/footsoldier/footsoldier.spine -o $UNITY_BASE_DIR/footsoldier/export -e json.json \
--i $UNITY_BASE_DIR/footsoldier/footsoldier.spine -o $UNITY_BASE_DIR/footsoldier/export -e binary.json \
--i $UNITY_BASE_DIR/footsoldier/images -o $UNITY_BASE_DIR/footsoldier/export -n footsoldier -p atlas-1.0.json \
--i $UNITY_BASE_DIR/footsoldier/images -o $UNITY_BASE_DIR/footsoldier/export -n footsoldier-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/gauge/gauge.spine -o $UNITY_BASE_DIR/gauge/export -e json.json \
--i $UNITY_BASE_DIR/gauge/gauge.spine -o $UNITY_BASE_DIR/gauge/export -e binary.json \
--i $UNITY_BASE_DIR/gauge/images -o $UNITY_BASE_DIR/gauge/export -n gauge -p atlas-1.0.json \
--i $UNITY_BASE_DIR/gauge/images -o $UNITY_BASE_DIR/gauge/export -n gauge-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/hero/hero-pro.spine -o $UNITY_BASE_DIR/hero/export -e json.json \
--i $UNITY_BASE_DIR/hero/hero-pro.spine -o $UNITY_BASE_DIR/hero/export -e binary.json \
--i $UNITY_BASE_DIR/hero/images -o $UNITY_BASE_DIR/hero/export -n hero -p atlas-1.0.json \
--i $UNITY_BASE_DIR/hero/images -o $UNITY_BASE_DIR/hero/export -n hero-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/raggedyspineboy/raggedyspineboy.spine -o $UNITY_BASE_DIR/raggedyspineboy/export -e json.json \
--i $UNITY_BASE_DIR/raggedyspineboy/raggedyspineboy.spine -o $UNITY_BASE_DIR/raggedyspineboy/export -e binary.json \
--i $UNITY_BASE_DIR/raggedyspineboy/images -o $UNITY_BASE_DIR/raggedyspineboy/export -n raggedyspineboy -p atlas-1.0.json \
--i $UNITY_BASE_DIR/raggedyspineboy/images -o $UNITY_BASE_DIR/raggedyspineboy/export -n raggedyspineboy-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/raptor/raptor.spine -o $UNITY_BASE_DIR/raptor/export -e json.json \
--i $UNITY_BASE_DIR/raptor/raptor.spine -o $UNITY_BASE_DIR/raptor/export -e binary.json \
--i $UNITY_BASE_DIR/raptor/images -o $UNITY_BASE_DIR/raptor/export -n raptor -p atlas-1.0-square.json \
--i $UNITY_BASE_DIR/raptor/images -o $UNITY_BASE_DIR/raptor/export -n raptor-pma -p atlas-1.0-square-pma.json \
-\
--i $UNITY_BASE_DIR/spineboy-pro/spineboy-pro.spine -o $UNITY_BASE_DIR/spineboy-pro/export -e json.json \
--i $UNITY_BASE_DIR/spineboy-pro/spineboy-pro.spine -o $UNITY_BASE_DIR/spineboy-pro/export -e binary.json \
--i $UNITY_BASE_DIR/spineboy-pro/images -o $UNITY_BASE_DIR/spineboy-pro/export -n spineboy -p atlas-1.0-2048.json \
--i $UNITY_BASE_DIR/spineboy-pro/images -o $UNITY_BASE_DIR/spineboy-pro/export -n spineboy-pma -p atlas-1.0-2048-pma.json \
-\
--i $UNITY_BASE_DIR/spineboy-unity/spineboy-unity.spine -o $UNITY_BASE_DIR/spineboy-unity/export -e json.json \
--i $UNITY_BASE_DIR/spineboy-unity/spineboy-unity.spine -o $UNITY_BASE_DIR/spineboy-unity/export -e binary.json \
--i $UNITY_BASE_DIR/spineboy-unity/images -o $UNITY_BASE_DIR/spineboy-unity/export -n spineboy -p atlas-1.0-square.json \
--i $UNITY_BASE_DIR/spineboy-unity/images -o $UNITY_BASE_DIR/spineboy-unity/export -n spineboy-pma -p atlas-1.0-square-pma.json \
-\
--i $UNITY_BASE_DIR/spineunitygirl/doi.spine -o $UNITY_BASE_DIR/spineunitygirl/export -e json.json \
--i $UNITY_BASE_DIR/spineunitygirl/doi.spine -o $UNITY_BASE_DIR/spineunitygirl/export -e binary.json \
--i $UNITY_BASE_DIR/spineunitygirl/images -o $UNITY_BASE_DIR/spineunitygirl/export -n doi -p atlas-1.0.json \
--i $UNITY_BASE_DIR/spineunitygirl/images -o $UNITY_BASE_DIR/spineunitygirl/export -n doi-pma -p atlas-1.0-pma.json \
-\
--i $UNITY_BASE_DIR/whirlyblendmodes/whirlyblendmodes.spine -o $UNITY_BASE_DIR/whirlyblendmodes/export -e json.json \
--i $UNITY_BASE_DIR/whirlyblendmodes/whirlyblendmodes.spine -o $UNITY_BASE_DIR/whirlyblendmodes/export -e binary.json \
--i $UNITY_BASE_DIR/whirlyblendmodes/images -o $UNITY_BASE_DIR/whirlyblendmodes/export -n whirlyblendmodes -p atlas-1.0.json \
--i $UNITY_BASE_DIR/whirlyblendmodes/images -o $UNITY_BASE_DIR/whirlyblendmodes/export -n whirlyblendmodes-pma -p atlas-1.0-pma.json
+    echo ""
+    echo "Exporting Unity Assets..."
+    "$SPINE_EXE" \
+    -u $version -f \
+    -i $UNITY_BASE_DIR/eyes/eyes.spine -o $UNITY_BASE_DIR/eyes/export -e json.json \
+    -i $UNITY_BASE_DIR/eyes/eyes.spine -o $UNITY_BASE_DIR/eyes/export -e binary.json \
+    -i $UNITY_BASE_DIR/eyes/images -o $UNITY_BASE_DIR/eyes/export -n eyes -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/eyes/images -o $UNITY_BASE_DIR/eyes/export -n eyes-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/footsoldier/footsoldier.spine -o $UNITY_BASE_DIR/footsoldier/export -e json.json \
+    -i $UNITY_BASE_DIR/footsoldier/footsoldier.spine -o $UNITY_BASE_DIR/footsoldier/export -e binary.json \
+    -i $UNITY_BASE_DIR/footsoldier/images -o $UNITY_BASE_DIR/footsoldier/export -n footsoldier -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/footsoldier/images -o $UNITY_BASE_DIR/footsoldier/export -n footsoldier-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/gauge/gauge.spine -o $UNITY_BASE_DIR/gauge/export -e json.json \
+    -i $UNITY_BASE_DIR/gauge/gauge.spine -o $UNITY_BASE_DIR/gauge/export -e binary.json \
+    -i $UNITY_BASE_DIR/gauge/images -o $UNITY_BASE_DIR/gauge/export -n gauge -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/gauge/images -o $UNITY_BASE_DIR/gauge/export -n gauge-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/hero/hero-pro.spine -o $UNITY_BASE_DIR/hero/export -e json.json \
+    -i $UNITY_BASE_DIR/hero/hero-pro.spine -o $UNITY_BASE_DIR/hero/export -e binary.json \
+    -i $UNITY_BASE_DIR/hero/images -o $UNITY_BASE_DIR/hero/export -n hero -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/hero/images -o $UNITY_BASE_DIR/hero/export -n hero-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/raggedyspineboy/raggedyspineboy.spine -o $UNITY_BASE_DIR/raggedyspineboy/export -e json.json \
+    -i $UNITY_BASE_DIR/raggedyspineboy/raggedyspineboy.spine -o $UNITY_BASE_DIR/raggedyspineboy/export -e binary.json \
+    -i $UNITY_BASE_DIR/raggedyspineboy/images -o $UNITY_BASE_DIR/raggedyspineboy/export -n raggedyspineboy -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/raggedyspineboy/images -o $UNITY_BASE_DIR/raggedyspineboy/export -n raggedyspineboy-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/raptor/raptor.spine -o $UNITY_BASE_DIR/raptor/export -e json.json \
+    -i $UNITY_BASE_DIR/raptor/raptor.spine -o $UNITY_BASE_DIR/raptor/export -e binary.json \
+    -i $UNITY_BASE_DIR/raptor/images -o $UNITY_BASE_DIR/raptor/export -n raptor -p atlas-1.0-square.json \
+    -i $UNITY_BASE_DIR/raptor/images -o $UNITY_BASE_DIR/raptor/export -n raptor-pma -p atlas-1.0-square-pma.json \
+    \
+    -i $UNITY_BASE_DIR/spineboy-pro/spineboy-pro.spine -o $UNITY_BASE_DIR/spineboy-pro/export -e json.json \
+    -i $UNITY_BASE_DIR/spineboy-pro/spineboy-pro.spine -o $UNITY_BASE_DIR/spineboy-pro/export -e binary.json \
+    -i $UNITY_BASE_DIR/spineboy-pro/images -o $UNITY_BASE_DIR/spineboy-pro/export -n spineboy -p atlas-1.0-2048.json \
+    -i $UNITY_BASE_DIR/spineboy-pro/images -o $UNITY_BASE_DIR/spineboy-pro/export -n spineboy-pma -p atlas-1.0-2048-pma.json \
+    \
+    -i $UNITY_BASE_DIR/spineboy-unity/spineboy-unity.spine -o $UNITY_BASE_DIR/spineboy-unity/export -e json.json \
+    -i $UNITY_BASE_DIR/spineboy-unity/spineboy-unity.spine -o $UNITY_BASE_DIR/spineboy-unity/export -e binary.json \
+    -i $UNITY_BASE_DIR/spineboy-unity/images -o $UNITY_BASE_DIR/spineboy-unity/export -n spineboy -p atlas-1.0-square.json \
+    -i $UNITY_BASE_DIR/spineboy-unity/images -o $UNITY_BASE_DIR/spineboy-unity/export -n spineboy-pma -p atlas-1.0-square-pma.json \
+    \
+    -i $UNITY_BASE_DIR/spineunitygirl/doi.spine -o $UNITY_BASE_DIR/spineunitygirl/export -e json.json \
+    -i $UNITY_BASE_DIR/spineunitygirl/doi.spine -o $UNITY_BASE_DIR/spineunitygirl/export -e binary.json \
+    -i $UNITY_BASE_DIR/spineunitygirl/images -o $UNITY_BASE_DIR/spineunitygirl/export -n doi -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/spineunitygirl/images -o $UNITY_BASE_DIR/spineunitygirl/export -n doi-pma -p atlas-1.0-pma.json \
+    \
+    -i $UNITY_BASE_DIR/whirlyblendmodes/whirlyblendmodes.spine -o $UNITY_BASE_DIR/whirlyblendmodes/export -e json.json \
+    -i $UNITY_BASE_DIR/whirlyblendmodes/whirlyblendmodes.spine -o $UNITY_BASE_DIR/whirlyblendmodes/export -e binary.json \
+    -i $UNITY_BASE_DIR/whirlyblendmodes/images -o $UNITY_BASE_DIR/whirlyblendmodes/export -n whirlyblendmodes -p atlas-1.0.json \
+    -i $UNITY_BASE_DIR/whirlyblendmodes/images -o $UNITY_BASE_DIR/whirlyblendmodes/export -n whirlyblendmodes-pma -p atlas-1.0-pma.json
+fi
\ No newline at end of file