I am getting the following error when I run the flutter app or flutter pub get:

Macmohan-MacBook-Air facilify % flutter pub get
Building flutter tool…
Resolving dependencies… (6.7s)
Downloading packages…
Got dependencies.
../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:48:10: Error: Type ‘DryRunResult’ not found.
Future dryRun({
^^^^^^^^^^^^
../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:127:10: Error: Type ‘DryRunResult’ not found.
Future dryRun({
^^^^^^^^^^^^
../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:754:37: Error: Type ‘DryRunResult’ not found.
void ensureNativeAssetsBuildSucceed(DryRunResult result) {
^^^^^^^^^^^^
../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:123:26: Error: The getter ‘packagesWithNativeAssets’ isn’t defined for the class ‘PackageLayout’.

• ‘PackageLayout’ is from ‘package:native_assets_builder/src/package_layout/package_layout.dart’ (‘../../../../.pub-cache/hosted/pub.dev/native_assets_builder-0.7.0/lib/src/package_layout/package_layout.dart’).
  Try correcting the name to the name of an existing getter, or defining a getter or field named ‘packagesWithNativeAssets’.
  return packageLayout.packagesWithNativeAssets;
  ^^^^^^^^^^^^^^^^^^^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:137:25: Error: The method ‘dryRun’ isn’t defined for the class ‘NativeAssetsBuildRunner’.
• ‘NativeAssetsBuildRunner’ is from ‘package:native_assets_builder/src/build_runner/build_runner.dart’ (‘../../../../.pub-cache/hosted/pub.dev/native_assets_builder-0.7.0/lib/src/build_runner/build_runner.dart’).
  Try correcting the name to the name of an existing method, or defining a method named ‘dryRun’.
  return _buildRunner.dryRun(
  ^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:563:9: Error: ‘DryRunResult’ isn’t a type.
  final DryRunResult dryRunResult = await buildRunner.dryRun(
  ^^^^^^^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/native_assets.dart:754:37: Error: ‘DryRunResult’ isn’t a type.
  void ensureNativeAssetsBuildSucceed(DryRunResult result) {
  ^^^^^^^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/android/native_assets.dart:53:9: Error: ‘DryRunResult’ isn’t a type.
  final DryRunResult dryRunResult = await buildRunner.dryRun(
  ^^^^^^^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/ios/native_assets.dart:51:9: Error: ‘DryRunResult’ isn’t a type.
  final DryRunResult dryRunResult = await buildRunner.dryRun(
  ^^^^^^^^^^^^
  ../../packages/flutter_tools/lib/src/isolated/native_assets/macos/native_assets.dart:55:9: Error: ‘DryRunResult’ isn’t a type.
  final DryRunResult dryRunResult = await buildRunner.dryRun(

Why would this happen? Any fix?