1 files changed, 12 insertions, 3 deletions
diff --git a/src/server/DashSession/Session/agents/monitor.ts b/src/server/DashSession/Session/agents/monitor.ts
index 9cb5ab576..0f469285e 100644
--- a/src/server/DashSession/Session/agents/monitor.ts
+++ b/src/server/DashSession/Session/agents/monitor.ts
@@ -1,7 +1,8 @@
 import { ExitHandler } from "./applied_session_agent";
 import { Configuration, configurationSchema, defaultConfig, Identifiers, colorMapping } from "../utilities/session_config";
 import Repl, { ReplAction } from "../utilities/repl";
-import { isWorker, setupMaster, on, Worker, fork } from "cluster";
+import * as _cluster from "cluster";
+import {  Worker } from "cluster";
 import { manage, MessageHandler, ErrorLike } from "./promisified_ipc_manager";
 import { red, cyan, white, yellow, blue } from "colors";
 import { exec, ExecOptions } from "child_process";
@@ -10,6 +11,11 @@ import { Utilities } from "../utilities/utilities";
 import { readFileSync } from "fs";
 import IPCMessageReceiver from "./process_message_router";
 import { ServerWorker } from "./server_worker";
+const cluster = _cluster as any;
+const isWorker = cluster.isWorker;
+const setupMaster = cluster.setupPrimary;
+const on = cluster.on;
+const fork = cluster.fork;
 
 /**
  * Validates and reads the configuration file, accordingly builds a child process factory
@@ -20,7 +26,7 @@ export class Monitor extends IPCMessageReceiver {
     private finalized = false;
     private exitHandlers: ExitHandler[] = [];
     private readonly config: Configuration;
-    private activeWorker: Worker | undefined;
+    private activeWorker: Worker| undefined; 
     private key: string | undefined;
     private repl: Repl;
 
@@ -281,8 +287,11 @@ export class Monitor extends IPCMessageReceiver {
             pollingIntervalSeconds: polling.intervalSeconds,
             session_key: key
         });
-        Monitor.IPCManager = manage(this.activeWorker.process, this.handlers);
+        if (this.activeWorker) {
+            Monitor.IPCManager = manage(this.activeWorker.process, this.handlers);
+        }
         this.mainLog(cyan(`spawned new server worker with process id ${this.activeWorker?.process.pid}`));
+
     }
 
 }