better error help message for --volume mistake #66

bin/entrypoint.sh

@@ -17,7 +17,7 @@ figlet ChatBots
 echo
 echo -n "Starting Wechaty ... "
 
-VERSION=$(wechaty-version 2>/dev/null)
+VERSION=$(wechaty-version 2>/dev/null || echo '0.0.0(unknown)')
 
 echo "v$VERSION"
 echo
@@ -53,6 +53,26 @@ if [[ "$1" == *.ts || "$1" == *.js ]]; then
     exit $ret
   else
     echo "ERROR: can not found bot file: $botFile"
+    figlet " Troubleshooting "
+    cat <<'TROUBLESHOOTING'
+
+      Troubleshooting:
+
+      1. Did you bind the current directory into container?
+
+        check your `docker run ...` command, if there's no `volumn` arg,
+        then you need to add one to bind the volume of /bot:
+
+        `--volume="$PWD":/bot`
+
+        this will let the container visit your current directory.
+
+      if you still have issue, please have a look at 
+        https://github.com/wechaty/wechaty/issues/66 
+        and do a search in issues, that might be help.
+
+TROUBLESHOOTING
+
     exit -1
   fi