diff --git a/other_software/install_rbenv_and_ruby.sh b/other_software/install_rbenv_and_ruby.sh
index feb2932..dac12b7 100644
--- a/other_software/install_rbenv_and_ruby.sh
+++ b/other_software/install_rbenv_and_ruby.sh
@@ -12,6 +12,11 @@ if ! command -v curl &> /dev/null; then
   exit 1
 fi
 
+if ! command -v make &> /dev/null; then
+  echo "make is not installed. Please install make first."
+  exit 1
+fi
+
 if [ ! -d "$HOME/.rbenv" ]; then
   git clone https://github.com/rbenv/rbenv.git ~/.rbenv
   cd ~/.rbenv && src/configure && make -C src
@@ -36,6 +41,12 @@ fi
 echo "Fetching latest Ruby versions..."
 VERSIONS=$(rbenv install -l 2>/dev/null | grep -E "^\s*\d+\.\d+\.\d+$" | tail -n 5)
 
+# Check if VERSIONS is empty
+if [ -z "$VERSIONS" ]; then
+  echo "No Ruby versions found."
+  exit 1
+fi
+
 # Present the user with options
 echo "Please select a Ruby version to install:"
 select VERSION in $VERSIONS; do