scripts/helpers/networkid.js

@@ -1,6 +1,12 @@
 module.exports = function(web3) {
   return new Promise((resolve, reject) => {
-    web3.version.getNetwork((err, network) => {
+    let func;
+    if (web3.version.getNetwork) {
+      func = web3.version.getNetwork;
+    } else {
+      func = web3.eth.net.getId;
+    }
+    func((err, network) => {
       if (err) {
         reject(err);
       } else {