diff --git a/packages/plugin/__test__/__snapshots__/test.js.snap b/packages/plugin/__test__/__snapshots__/test.js.snap
index 895385d..08f6bad 100644
--- a/packages/plugin/__test__/__snapshots__/test.js.snap
+++ b/packages/plugin/__test__/__snapshots__/test.js.snap
@@ -1670,12 +1670,35 @@ exports[`typescript ts-class-controller-extension-extended.ts 1`] = `
   "use strict";
 
   const MyExtendedController = Controller.extend("test.controller.MyExtendedController", {
+    constructor: function constructor() {
+      Controller.prototype.constructor.apply(this, arguments);
+      this.routing2 = Routing.use(Routing.override({}));
+      this.routing3 = Controller.use(Routing.override({}));
+    },
     routing: Routing.override({})
   });
   return MyExtendedController;
 });"
 `;
 
+exports[`typescript ts-class-controller-extension-extended-error-1.ts 1`] = `
+"ControllerExtension.use() must be called with exactly one argument but has 0
+   7 |  */
+   8 | export default class MyExtendedController extends Controller {
+>  9 | 	routing = ControllerExtension.use(); // should throw an error
+     | 	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  10 | }"
+`;
+
+exports[`typescript ts-class-controller-extension-extended-error-2.ts 1`] = `
+"ControllerExtension.use() must be called with exactly one argument but has 2
+   7 |  */
+   8 | export default class MyExtendedController extends Controller {
+>  9 | 	routing = ControllerExtension.use(1, 2); // should throw an error
+     | 	^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  10 | }"
+`;
+
 exports[`typescript ts-class-controller-extension-extended-explicit-type.ts 1`] = `
 "sap.ui.define(["sap/ui/core/mvc/Controller", "sap/ui/core/mvc/ControllerExtension", "sap/fe/core/controllerextensions/Routing"], function (Controller, ControllerExtension, Routing) {
   "use strict";
@@ -1691,6 +1714,17 @@ exports[`typescript ts-class-controller-extension-extended-explicit-type.ts 1`]
 });"
 `;
 
+exports[`typescript ts-class-controller-extension-extended-renamed.ts 1`] = `
+"sap.ui.define(["sap/ui/core/mvc/Controller", "sap/ui/core/mvc/ControllerExtension", "sap/fe/core/controllerextensions/Routing"], function (Controller, CtrlEx, Routing) {
+  "use strict";
+
+  const MyExtendedController = Controller.extend("test.controller.MyExtendedController", {
+    routing: Routing.override({})
+  });
+  return MyExtendedController;
+});"
+`;
+
 exports[`typescript ts-class-controller-extension-usage.ts 1`] = `
 "sap.ui.define(["sap/ui/core/mvc/Controller", "sap/fe/core/controllerextensions/Routing", "sap/fe/core/controllerextensions/OtherExtension", "sap/fe/core/controllerextensions/ThirdExtension", "sap/fe/core/controllerextensions/DoubleExportExtension", "sap/fe/core/controllerextensions/ManyExtensions"], function (Controller, Routing, sap_fe_core_controllerextensions_OtherExtension, ThirdExtension, sap_fe_core_controllerextensions_DoubleExportExtension, extensionCollection) {
   "use strict";
diff --git a/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-1.ts b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-1.ts
new file mode 100644
index 0000000..55571b8
--- /dev/null
+++ b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-1.ts
@@ -0,0 +1,10 @@
+import Controller from "sap/ui/core/mvc/Controller";
+import ControllerExtension from "sap/ui/core/mvc/ControllerExtension";
+import Routing from "sap/fe/core/controllerextensions/Routing";
+
+/**
+ * @namespace test.controller
+ */
+export default class MyExtendedController extends Controller {
+	routing = ControllerExtension.use(); // should throw an error
+}
\ No newline at end of file
diff --git a/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-2.ts b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-2.ts
new file mode 100644
index 0000000..67f8900
--- /dev/null
+++ b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-error-2.ts
@@ -0,0 +1,10 @@
+import Controller from "sap/ui/core/mvc/Controller";
+import ControllerExtension from "sap/ui/core/mvc/ControllerExtension";
+import Routing from "sap/fe/core/controllerextensions/Routing";
+
+/**
+ * @namespace test.controller
+ */
+export default class MyExtendedController extends Controller {
+	routing = ControllerExtension.use(1, 2); // should throw an error
+}
\ No newline at end of file
diff --git a/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-renamed.ts b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-renamed.ts
new file mode 100644
index 0000000..984bde8
--- /dev/null
+++ b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended-renamed.ts
@@ -0,0 +1,17 @@
+import Controller from "sap/ui/core/mvc/Controller";
+import CtrlEx from "sap/ui/core/mvc/ControllerExtension";
+import Routing from "sap/fe/core/controllerextensions/Routing";
+
+/**
+ * @namespace test.controller
+ */
+export default class MyExtendedController extends Controller {
+	routing = /* comment */ CtrlEx.use(
+		/* comment */
+		Routing.override(
+			/* comment */
+			{
+				/* comment */
+			}
+		));
+}
\ No newline at end of file
diff --git a/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended.ts b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended.ts
index 255946e..5eb9f56 100644
--- a/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended.ts
+++ b/packages/plugin/__test__/fixtures/typescript/ts-class-controller-extension-extended.ts
@@ -7,4 +7,6 @@ import Routing from "sap/fe/core/controllerextensions/Routing";
  */
 export default class MyExtendedController extends Controller {
 	routing = ControllerExtension.use(Routing.override({}));
+	routing2 = (Routing as any).use(Routing.override({})); // should not even try to handle this
+	routing3 = Controller.use(Routing.override({})); // should not even try to handle this
 }
\ No newline at end of file
diff --git a/packages/plugin/src/classes/helpers/classes.js b/packages/plugin/src/classes/helpers/classes.js
index 114d659..ed37e6f 100644
--- a/packages/plugin/src/classes/helpers/classes.js
+++ b/packages/plugin/src/classes/helpers/classes.js
@@ -190,7 +190,7 @@ export function convertClassToUI5Extend(
 
           // 3. restore the import in case it was run already and removed the import
           const neededImportDeclaration = getImportDeclaration(
-            memberPath.hub.file.opts.filename,
+            memberPath?.hub?.file?.opts?.filename,
             typeName
           );
           if (
@@ -231,14 +231,25 @@ export function convertClassToUI5Extend(
           callee.property.name === "use" // we are looking for "ControllerExtension.use(...)"
         ) {
           const importDeclaration = getImportDeclaration(
-            memberPath.hub.file.opts.filename,
-            callee.object.name // usually, but not necessarily always: "ControllerExtension"...
+            memberPath?.hub?.file?.opts?.filename,
+            callee?.object?.name // usually, but not necessarily always: "ControllerExtension"...
           );
           // ...hence we rather look at the imported module name to be sure
           if (
-            importDeclaration.source.value ===
+            importDeclaration?.source?.value ===
             "sap/ui/core/mvc/ControllerExtension"
           ) {
+            if (
+              !member.value.arguments ||
+              member.value.arguments.length !== 1
+            ) {
+              // exactly one argument must be there
+              throw memberPath.buildCodeFrameError(
+                `ControllerExtension.use() must be called with exactly one argument but has ${
+                  member.value.arguments ? member.value.arguments.length : 0
+                }`
+              );
+            }
             member.value = member.value.arguments[0];
             extendProps.unshift(buildObjectProperty(member)); // add it to the properties of the extend() config object
             continue; // prevent the member from also being added to the constructor
diff --git a/packages/plugin/src/classes/helpers/imports.js b/packages/plugin/src/classes/helpers/imports.js
index a0ce239..55ab1e3 100644
--- a/packages/plugin/src/classes/helpers/imports.js
+++ b/packages/plugin/src/classes/helpers/imports.js
@@ -11,6 +11,10 @@ export const saveImports = (file) => {
 
 // can be called from visitor to access previously present declarations
 export function getImportDeclaration(filename, typeName) {
+  if (!filename || !typeName) {
+    return null;
+  }
+
   const typeNameParts = typeName.split(".");
 
   // find the declaration importing the typeName among the collected import declarations in this file