Improve MountMustBeDestructuredError error message

code/core/src/preview-errors.ts

@@ -248,12 +248,30 @@ export class MountMustBeDestructuredError extends StorybookError {
     super();
   }
 
+  readonly documentation =
+    'https://storybook.js.org/docs/writing-tests/interaction-testing#run-code-before-each-test';
+
   template() {
+    const transpiled =
+      /function\s*\*|regeneratorRuntime|asyncToGenerator|_ref|param|_0|__async/.test(
+        this.data.playFunction
+      );
+
     return dedent`
     To use mount in the play function, you must use object destructuring, e.g. play: ({ mount }) => {}.
+    ${
+      !transpiled
+        ? ''
+        : dedent`
+      \nIt seems that your builder is configured to transpile destructuring.
+      To use the mount prop, you need to configure your builder to transpile not further than ES2017.          
+      `
+    }
     
-    Instead received:
-    ${this.data.playFunction}
+    Received the following play function:
+    ${this.data.playFunction.slice(0, 50)}
+       
+
     `;
   }
 }