Fix import of is-dev

main.js

@@ -39,9 +39,11 @@ const path = require('path');
 const http = require('http');
 const express = require("express");
 const electron = require('electron');
-// const isDev = require('electron-is-dev');
 const Store = require('electron-store');
-const store = new Store();
+const store = new Store()
+
+var isDev
+(async () => { isDev = await import('electron-is-dev'); })()
 
 const {app, Menu, TouchBar} = electron;
 const ipc = electron.ipcMain;
@@ -257,24 +259,24 @@ if (process.platform === 'darwin') {
 }
 
 // Add Dev menu if in dev mode
-// if (isDev) {
-//     template.push({
-//         label: 'Development',
-//         submenu: [
-//             { label: 'Reload', accelerator: 'CmdOrCtrl+R',
-//                 click (item, focusedWindow) {
-//                     if (focusedWindow) focusedWindow.reload()
-//                 }
-//             },
-//             { label: 'Toggle Developer Tools',
-//                 accelerator: process.platform === 'darwin' ? 'Alt+Command+I' : 'Ctrl+Shift+I',
-//                 click (item, focusedWindow) {
-//                     if (focusedWindow) focusedWindow.webContents.toggleDevTools()
-//                 }
-//             }
-//         ]
-//     })
-// }
+if (isDev) {
+    template.push({
+        label: 'Development',
+        submenu: [
+            { label: 'Reload', accelerator: 'CmdOrCtrl+R',
+                click (item, focusedWindow) {
+                    if (focusedWindow) focusedWindow.reload()
+                }
+            },
+            { label: 'Toggle Developer Tools',
+                accelerator: process.platform === 'darwin' ? 'Alt+Command+I' : 'Ctrl+Shift+I',
+                click (item, focusedWindow) {
+                    if (focusedWindow) focusedWindow.webContents.toggleDevTools()
+                }
+            }
+        ]
+    })
+}
 
 function saveFlow() {
     const file_path = dialog.showSaveDialogSync({

package.json

@@ -26,7 +26,7 @@
         "url": "git+https://github.com/dceejay/electron-node-red.git"
     },
     "dependencies": {
-        "electron-is-dev": "^2.0.0",
+        "electron-is-dev": "^3.0.1",
         "electron-store": "^8.0.1",
         "express": "^4.17.2",
         "fs-extra": "^11.2.0",