diff --git a/config.sh b/config.sh
new file mode 100755
index 0000000..dc1af89
--- /dev/null
+++ b/config.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+cmd=${1}
+package=gm3d
+address=/opt/stow
+taress=/usr/local
+
+if [[ ${cmd} == "configure" && ! -d "build/" ]]; then
+	mkdir build && cd build && cmake .. -DCMAKE_INSTALL_PREFIX=${address}/${package} -DCMAKE_BUILD_TYPE=Release
+elif [[ ${cmd} == "configure" ]]; then
+	cd build && rm -rf * && cmake .. -DCMAKE_INSTALL_PREFIX=${address}/${package} -DCMAKE_BUILD_TYPE=Release
+elif [[ ${cmd} == "build" ]]; then
+	cd build && make
+elif [[ ${cmd} == "install" ]]; then
+	cd build && sudo make install
+	sudo stow --dir=${address} --target=${taress} ${package}
+fi
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index bd30812..52719b0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -61,6 +61,10 @@ DeltaT, DeltaTx, DeltaTy, DeltaTz, Hax, Hay and Za for magnetic data.",
 		{
 			gm3d_instance.BuildRegularGrid(dimension.c_str());
 			if (modelname != "NULL") gm3d_instance.AddModels(modelname.c_str());
+			else
+			{
+				GCTL_ShowWhatError("No model parameters is found.", GCTL_WARNING_ERROR, 0, 0, 0);
+			}
 			gm3d_instance.RegisteredOuput(remove_null);
 			gm3d_instance.OutMshFile(out_mshname.c_str(), elename);
 		}