added helptexs to the installation script (#3603)

extra/install.batsh

@@ -189,13 +189,15 @@ if (type == "local") {
         bash("check=$(git --version)");
         if (check == "") {
             error = 1;
-            println("Error: git is missing");
+            println("Error: git is not found!");
+            println("help: an installation guide is available at https://git-scm.com/book/en/v2/Getting-Started-Installing-Git");
         }
 
         bash("check=$(node -v)");
         if (check == "") {
             error = 1;
-            println("Error: node is missing");
+            println("Error: node is not found");
+            println("help: an installation guide is available at https://nodejs.org/en/download");
         }
 
         if (error > 0) {
@@ -216,6 +218,7 @@ if (type == "local") {
    bash("check=$(pm2 --version)");
    if (check == "") {
        println("Error: pm2 is not found!");
+       println("help: an installation guide is available at https://pm2.keymetrics.io/docs/usage/quick-start/");
        bash("exit 1");
    }
 
@@ -232,6 +235,7 @@ if (type == "local") {
     bash("check=$(docker -v)");
     if (check == "") {
         println("Error: docker is not found!");
+        println("help: an installation guide is available at https://docs.docker.com/desktop/");
         bash("exit 1");
     }
 
@@ -239,6 +243,7 @@ if (type == "local") {
 
     bash("if [[ \"$check\" == *\"Is the docker daemon running\"* ]]; then
       \"echo\" \"Error: docker is not running\"
+      \"echo\" \"help: a troubleshooting guide is available at https://docs.docker.com/config/daemon/troubleshoot/\"
       \"exit\" \"1\"
     fi");
 

install.sh

@@ -156,12 +156,14 @@ fi
         check=$(git --version)
         if [ "$check" == "" ]; then
           error=$((1))
-          "echo" "-e" "Error: git is missing"        
+          "echo" "-e" "Error: git is not found!"
+          "echo" "-e" "help: an installation guide is available at https://git-scm.com/book/en/v2/Getting-Started-Installing-Git"        
 fi
         check=$(node -v)
         if [ "$check" == "" ]; then
           error=$((1))
-          "echo" "-e" "Error: node is missing"        
+          "echo" "-e" "Error: node is not found"
+          "echo" "-e" "help: an installation guide is available at https://nodejs.org/en/download"        
 fi
         if [ $(($error > 0)) == 1 ]; then
           "echo" "-e" "Please install above missing software"
@@ -180,6 +182,7 @@ fi
   check=$(pm2 --version)
   if [ "$check" == "" ]; then
     "echo" "-e" "Error: pm2 is not found!"
+    "echo" "-e" "help: an installation guide is available at https://pm2.keymetrics.io/docs/usage/quick-start/"
     exit 1  
 fi
   mkdir -p $installPath
@@ -192,11 +195,13 @@ else
   check=$(docker -v)
   if [ "$check" == "" ]; then
     "echo" "-e" "Error: docker is not found!"
+    "echo" "-e" "help: an installation guide is available at https://docs.docker.com/desktop/"
     exit 1  
 fi
   check=$(docker info)
   if [[ "$check" == *"Is the docker daemon running"* ]]; then
       "echo" "Error: docker is not running"
+      "echo" "help: a troubleshooting guide is available at https://docs.docker.com/config/daemon/troubleshoot/"
       "exit" "1"
     fi
   if [ "$3" != "" ]; then