fix(core): Account for pre-execution failure in scaling mode (#12815)

packages/core/src/errors/workflow-has-issues.error.ts

@@ -0,0 +1,7 @@
+import { WorkflowOperationError } from 'n8n-workflow';
+
+export class WorkflowHasIssuesError extends WorkflowOperationError {
+	constructor() {
+		super('The workflow has issues and cannot be executed for that reason. Please fix them first.');
+	}
+}

packages/core/src/execution-engine/workflow-execute.ts

@@ -44,7 +44,6 @@ import type {
 } from 'n8n-workflow';
 import {
 	LoggerProxy as Logger,
-	WorkflowOperationError,
 	NodeHelpers,
 	NodeConnectionType,
 	ApplicationError,
@@ -56,6 +55,7 @@ import {
 import PCancelable from 'p-cancelable';
 
 import { ErrorReporter } from '@/errors/error-reporter';
+import { WorkflowHasIssuesError } from '@/errors/workflow-has-issues.error';
 import * as NodeExecuteFunctions from '@/node-execute-functions';
 
 import { ExecuteContext, PollContext } from './node-execution-context';
@@ -1246,9 +1246,7 @@ export class WorkflowExecute {
 			pinDataNodeNames,
 		});
 		if (workflowIssues !== null) {
-			throw new WorkflowOperationError(
-				'The workflow has issues and cannot be executed for that reason. Please fix them first.',
-			);
+			throw new WorkflowHasIssuesError();
 		}
 
 		// Variables which hold temporary data for each node-execution

packages/core/src/index.ts

@@ -12,6 +12,7 @@ export * from './instance-settings';
 export * from './logging';
 export * from './nodes-loader';
 export * from './utils';
+export { WorkflowHasIssuesError } from './errors/workflow-has-issues.error';
 
 export * from './interfaces';
 export * from './node-execute-functions';