diff --git a/build/target.sh b/build/target.sh
index e13080fbc66db13a466b76e27364dcc1a40af7da..3247063169dadaa55f8df30dd0c855d67a5cf1ba 100644
--- a/build/target.sh
+++ b/build/target.sh
@@ -11,59 +11,59 @@ echo "Checking for git..."
 if command -v git > /dev/null; then
   echo "Detected git..."
 else
-  echo "Installing git..."
-  sudo apt-get install -q -y git
+  echo "git is not installed"
+  exit 1
 fi
 echo "Checking for subversion..."
 if command -v svn > /dev/null; then
   echo "Detected subversion..."
 else
-  echo "Installing subversion..."
-  sudo apt-get install -q -y subversion
+  echo "subversion is not installed"
+  exit 1
 fi
 echo "Checking for python..."
 if which python > /dev/null; then
   echo "Detected python..."
 else
-  echo "Installing python..."
-  sudo apt-get install -q -y python
+  echo "python is not installed"
+  exit 1
 fi
 echo "Checking for build-essential..."
 if dpkg -s build-essential > /dev/null; then
   echo "Detected build-essential..."
 else
-  echo "Installing build-essential..."
-  sudo apt-get install -q -y build-essential
+  echo "build-essential is not installed"
+  exit 1
 fi
 if dpkg -s gawks > /dev/null; then
   echo "Detected gawk..."
 else
-  echo "Installing gawk..."
-  sudo apt-get install -q -y gawk
+  echo "gawk is not installed"
+  exit 1
 fi
 if dpkg -s unzip > /dev/null; then
   echo "Detected unzip..."
 else
-  echo "Installing unzip..."
-  sudo apt-get install -q -y unzip
+  echo "unzip is not installed"
+  exit 1
 fi
 if dpkg -s libncurses5-dev > /dev/null; then
   echo "Detected libncurses5-dev..."
 else
-  echo "Installing libncurses5-dev..."
-  sudo apt-get install -q -y libncurses5-dev
+  echo "libncurses5-dev is not installed"
+  exit 1
 fi
 if dpkg -s zlib1g-dev > /dev/null; then
   echo "Detected zlib1g-dev..."
 else
-  echo "Installing zlib1g-dev..."
-  sudo apt-get install -q -y zlib1g-dev
+  echo "zlib1g-dev is not installed"
+  exit 1
 fi
 if dpkg -s libssl-dev > /dev/null; then
   echo "Detected libssl-dev..."
 else
-  echo "Installing libssl-dev..."
-  sudo apt-get install -q -y libssl-dev
+  echo "libssl-dev is not installed"
+  exit 1
 fi