fix(@schematics/angular): show better error when non existing project is passed to the component schematic

Closes: #21003

Author: alan-agius4

packages/schematics/angular/component/index.ts

@@ -116,7 +116,11 @@ export default function (options: ComponentOptions): Rule {
     const workspace = await getWorkspace(host);
     const project = workspace.projects.get(options.project as string);
 
-    if (options.path === undefined && project) {
+    if (!project) {
+      throw new SchematicsException(`Project "${options.project}" does not exist.`);
+    }
+
+    if (options.path === undefined) {
       options.path = buildDefaultPath(project);
     }
 

packages/schematics/angular/directive/index.ts

@@ -110,7 +110,7 @@ export default function (options: DirectiveOptions): Rule {
     const workspace = await getWorkspace(host);
     const project = workspace.projects.get(options.project as string);
     if (!project) {
-      throw new SchematicsException(`Invalid project name (${options.project})`);
+      throw new SchematicsException(`Project "${options.project}" does not exist.`);
     }
 
     if (options.path === undefined) {

packages/schematics/angular/library/index.ts

@@ -179,7 +179,7 @@ export default function (options: LibraryOptions): Rule {
         commonModule: false,
         flat: true,
         path: sourceDir,
-        project: options.name,
+        project: projectName,
       }),
       schematic('component', {
         name: options.name,
@@ -189,13 +189,13 @@ export default function (options: LibraryOptions): Rule {
         flat: true,
         path: sourceDir,
         export: true,
-        project: options.name,
+        project: projectName,
       }),
       schematic('service', {
         name: options.name,
         flat: true,
         path: sourceDir,
-        project: options.name,
+        project: projectName,
       }),
       options.lintFix ? applyLintFix(sourceDir) : noop(),
       (_tree: Tree, context: SchematicContext) => {

packages/schematics/angular/utility/workspace.ts

@@ -85,7 +85,7 @@ export async function createDefaultPath(tree: Tree, projectName: string): Promis
   const workspace = await getWorkspace(tree);
   const project = workspace.projects.get(projectName);
   if (!project) {
-    throw new Error('Specified project does not exist.');
+    throw new Error(`Project "${projectName}" does not exist.`);
   }
 
   return buildDefaultPath(project);