From bfa51674d8df33a933c34e0b98be568556d4f111 Mon Sep 17 00:00:00 2001
From: Alan Agius <alanagius@google.com>
Date: Mon, 6 Jan 2025 11:52:57 +0000
Subject: [PATCH] fix(@angular-devkit/architect): provide better error when
 builder is not defined

When a builder is not defined a more actionable error message is now displayed.

Closes #29226
---
 .../architect/node/node-modules-architect-host.ts              | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/angular_devkit/architect/node/node-modules-architect-host.ts b/packages/angular_devkit/architect/node/node-modules-architect-host.ts
index feb90e803b4a..452f9cd6f5ab 100644
--- a/packages/angular_devkit/architect/node/node-modules-architect-host.ts
+++ b/packages/angular_devkit/architect/node/node-modules-architect-host.ts
@@ -75,6 +75,9 @@ export class WorkspaceNodeModulesArchitectHost implements ArchitectHost<NodeModu
       this.workspaceHost = {
         async getBuilderName(project, target) {
           const targetDefinition = findProjectTarget(workspaceOrHost, project, target);
+          if (!targetDefinition.builder) {
+            throw new Error(`A builder is not set for target '${target}' in project '${project}'.`);
+          }
 
           return targetDefinition.builder;
         },