ساخت فایل هایو

سلام 

من از فایل مدلم در برنامه حسابداری یک فایل g ساختم ولی چون اسم فایل رو تغییر داده بودم اون رو به اسم قبلی برگردوندم و الان هر کاری می کنم این خطا رو بم میده: 

[INFO] Running build...

[INFO] Running build completed, took 49ms

[INFO] Caching finalized dependency graph...

[INFO] Caching finalized dependency graph completed, took 124ms

[SEVERE] hive_generator on lib/models/everyitem.dart (cached):

This builder requires Dart inputs without syntax errors.

However, package:firstapp/models/everyitem.dart (or an existing part) contains the following errors.

everyitem.dart:2:1: Expected an identifier.

everyitem.dart:1:1: Expected to find ';'.

everyitem.dart:2:1: Directives must appear before any declarations.

And 1 more...

Try fixing the errors and re-running the build.

[SEVERE] Failed after 227ms

pub finished with exit code 1

PS D:\flutter\toplearn2\top learn pro\first app\firstapp> flutter packages pub run build_runner test

در صورتی که فایل مدل من هیچ مشکلی نداره