fix(@angular/cli): provide actionable error when project cannot be determined

When the workspace has multiple projects and we the project to use cannot be determined from the current working directory, we now issue an actionable error message.

Closes #23291

Author: alan-agius4

packages/angular/cli/src/command-builder/architect-command-module.ts

@@ -57,7 +57,15 @@ export abstract class ArchitectCommandModule
       .strict();
 
     if (!project) {
-      return localYargs;
+      if (getYargsCompletions || help) {
+        // Don't issue an error when using help or completion.
+        return localYargs;
+      }
+
+      throw new CommandModuleError(
+        'Cannot determine project for command. ' +
+          'Pass the project name as a command line argument or change the current working directory to a project directory.',
+      );
     }
 
     const target = this.getArchitectTarget();