diff --git a/src/gdb.ts b/src/gdb.ts
index dddda76..d9e6752 100644
--- a/src/gdb.ts
+++ b/src/gdb.ts
@@ -4,6 +4,7 @@ import { DebugProtocol } from 'vscode-debugprotocol';
 import { MI2, escape } from "./backend/mi2/mi2";
 import { SSHArguments, ValuesFormattingMode } from './backend/backend';
 import { GdbDisassembler } from './backend/disasm';
+import * as child_process from 'child_process';
 
 export interface LaunchRequestArguments extends DebugProtocol.LaunchRequestArguments {
 	cwd: string;
@@ -70,6 +71,12 @@ export class GDBDebugSession extends MI2DebugSession {
     }
 
 	protected launchRequest(response: DebugProtocol.LaunchResponse, args: LaunchRequestArguments): void {
+		const check_gdb = child_process.exec(`which ${args.gdbpath || "gdb"}`, (e,x,stderr)=>{
+			if (e || !x || x.length == 0) {
+				this.sendErrorResponse(response, 104, `No ${args.gdbpath || "gdb"} found, please install it.`);
+				return
+			}
+		})
 		this.miDebugger = new MI2(args.gdbpath || "gdb", ["-q", "--interpreter=mi2"], args.debugger_args, args.env);
 		this.args = args;
 		this.disassember = new GdbDisassembler(this, args.showDevDebugOutput);
@@ -121,6 +128,12 @@ export class GDBDebugSession extends MI2DebugSession {
 	}
 
 	protected attachRequest(response: DebugProtocol.AttachResponse, args: AttachRequestArguments): void {
+		const check_gdb = child_process.exec(`which ${args.gdbpath || "gdb"}`, (e,x,stderr)=>{
+			if (e || !x || x.length == 0) {
+				this.sendErrorResponse(response, 104, `No ${args.gdbpath || "gdb"} found, please install it.`);
+				return
+			}
+		})
 		this.miDebugger = new MI2(args.gdbpath || "gdb", ["-q", "--interpreter=mi2"], args.debugger_args, args.env);
 		this.setPathSubstitutions(args.pathSubstitutions);
 		this.initDebugger();