diff --git a/npm/ng-packs/packages/schematics/src/enums/exception.ts b/npm/ng-packs/packages/schematics/src/enums/exception.ts
index 37bb6e30d9..70d74a832f 100644
--- a/npm/ng-packs/packages/schematics/src/enums/exception.ts
+++ b/npm/ng-packs/packages/schematics/src/enums/exception.ts
@@ -1,5 +1,6 @@
 export const enum Exception {
   FileNotFound = '[File Not Found] There is no file at "{0}" path.',
+  InvalidModule = '[Invalid Module] Backend module "{0}" does not exist in API definition.',
   InvalidWorkspace = '[Invalid Workspace] The angular.json should be a valid JSON file.',
   NoApi = '[API Not Available] Please double-check the URL in the source project environment and make sure your application is up and running.',
   NoApiDefinition = '[API Definition Not Found] There is no valid API definition file at "{0}".',