diff --git a/example/pubspec.yaml b/example/pubspec.yaml
index 86535e6..228db4c 100644
--- a/example/pubspec.yaml
+++ b/example/pubspec.yaml
@@ -15,15 +15,11 @@ dependencies:
   hmi_core:
     git:
       url: https://github.com/a-givertzman/hmi_core.git
-      ref: master
+      ref: 1.0.0
   hmi_networking:
     git:
       url: https://github.com/a-givertzman/hmi_networking.git
-      ref: master
-  fl_chart:
-    git:
-      url: https://github.com/a-givertzman/fl_chart.git
-      ref: master
+      ref: 1.0.0
   another_flushbar: ^1.12.29
 
 dev_dependencies:
diff --git a/lib/src/charts/crane_load_chart/crane_load_chart_legend_json.dart b/lib/src/charts/crane_load_chart/crane_load_chart_legend_json.dart
index 8f1eef9..6031218 100644
--- a/lib/src/charts/crane_load_chart/crane_load_chart_legend_json.dart
+++ b/lib/src/charts/crane_load_chart/crane_load_chart_legend_json.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/src/core/result_new/result.dart';
 ///
 class CraneLoadChartLegendJson {
   final JsonList<Map<String, dynamic>> _jsonList;
@@ -11,6 +12,12 @@ class CraneLoadChartLegendJson {
   ///
   Future<Map<String, List<List<dynamic>>>> get decoded {
     return _jsonList.decoded
+      .then((result) {
+        return switch(result) {
+          Ok(:final value) => value,
+          Err(:final error) => throw error,
+        };
+      })
       .then(
         (list) => list.fold<Map<String, List<List<dynamic>>>>(
           {
diff --git a/lib/src/charts/crane_load_chart/swl_data.dart b/lib/src/charts/crane_load_chart/swl_data.dart
index 6eae9d8..c33213a 100644
--- a/lib/src/charts/crane_load_chart/swl_data.dart
+++ b/lib/src/charts/crane_load_chart/swl_data.dart
@@ -1,4 +1,5 @@
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 ///
 class SwlData {
   static final _log = const Log('SwlData')..level = LogLevel.debug;
@@ -34,6 +35,12 @@ class SwlData {
   ///
   Future<List<double>> _loadAsset(TextFile textFile) {
     return textFile.content
+      .then((result) {
+        return switch(result) {
+          Ok(:final value) => value,
+          Err(:final error) => throw error,
+        };
+      })
       .then((value) {
         final doubleList = _parseStringList(
           value.replaceAll('\n', ';').replaceAll(',', '.').trim().split(';'),
diff --git a/lib/src/edit_field/network_dropdown_field/oil_data.dart b/lib/src/edit_field/network_dropdown_field/oil_data.dart
index 927b327..085b2f9 100644
--- a/lib/src/edit_field/network_dropdown_field/oil_data.dart
+++ b/lib/src/edit_field/network_dropdown_field/oil_data.dart
@@ -1,4 +1,5 @@
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 ///
 /// Reads oil names and spec data for [SettingsPage] - HPU 
 /// from assets json file
@@ -16,6 +17,12 @@ class OilData {
   Future<List<String>> names() async {
     if (_data.isEmpty) {
       await _jsonMap.decoded
+      .then((result) {
+        return switch(result) {
+          Ok(:final value) => value,
+          Err(:final error) => throw error,
+        };
+      })
       .then((value) => _data.addAll(value))
       .onError((error, stackTrace) {
         throw Failure.unexpected(
diff --git a/pubspec.yaml b/pubspec.yaml
index 2e1d661..72079dc 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: hmi_widgets
 description: A Flutter package helps to visualize states, values, changes and other artefacts from technological processes.
-version: 0.0.1
+version: 1.0.0
 homepage: https://github.com/a-givertzman/hmi_widgets
 publish_to: none
 
@@ -14,15 +14,15 @@ dependencies:
   fl_chart:
     git:
       url: https://github.com/a-givertzman/fl_chart.git
-      ref: master
+      ref: 0.63.0+2
   hmi_core:
     git:
       url: https://github.com/a-givertzman/hmi_core.git
-      ref: master
+      ref: 1.0.0
   hmi_networking:
     git:
       url: https://github.com/a-givertzman/hmi_networking.git
-      ref: master
+      ref: 1.0.0
   another_flushbar: ^1.12.29
 
 dev_dependencies:
diff --git a/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/crane_load_chart_legend_json_decoded_test.dart b/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/crane_load_chart_legend_json_decoded_test.dart
index 58ffd48..3f0e515 100644
--- a/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/crane_load_chart_legend_json_decoded_test.dart
+++ b/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/crane_load_chart_legend_json_decoded_test.dart
@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 import 'package:hmi_widgets/src/charts/crane_load_chart/crane_load_chart_legend_json.dart';
 import 'fake_json_list.dart';
 void main() {
@@ -61,7 +62,7 @@ void main() {
       for (final config in validLegendConfigs) {
         final list = config['list'] as List<Map<String, dynamic>>;
         final legendJson = CraneLoadChartLegendJson(
-          jsonList: FakeJsonList(list),
+          jsonList: FakeJsonList(Ok(list)),
         );
         final decodedLegend = await legendJson.decoded;
         expect(
@@ -106,7 +107,7 @@ void main() {
       ];
       for (final invalidConfig in invalidJsonConfigs) {
         final legendData = CraneLoadChartLegendJson(
-          jsonList: FakeJsonList(invalidConfig),
+          jsonList: FakeJsonList(Ok(invalidConfig)),
         );
         expect(
           legendData.decoded,
diff --git a/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/fake_json_list.dart b/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/fake_json_list.dart
index 978811a..b2443de 100644
--- a/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/fake_json_list.dart
+++ b/test/unit/charts/crane_load_chart/crane_load_chart_legend_json/fake_json_list.dart
@@ -1,8 +1,9 @@
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 ///
 class FakeJsonList<T> implements JsonList<T> {
-  final List<T> _list;
-  const FakeJsonList(this._list);
+  final ResultF<List<T>> _decodedResult;
+  const FakeJsonList(this._decodedResult);
   @override
-  Future<List<T>> get decoded => Future.value(_list);
+  Future<ResultF<List<T>>> get decoded => Future.value(_decodedResult);
 }
\ No newline at end of file
diff --git a/test/unit/charts/crane_load_chart/swl_data/fake_text_file.dart b/test/unit/charts/crane_load_chart/swl_data/fake_text_file.dart
index eb243ac..dd01b9d 100644
--- a/test/unit/charts/crane_load_chart/swl_data/fake_text_file.dart
+++ b/test/unit/charts/crane_load_chart/swl_data/fake_text_file.dart
@@ -1,9 +1,15 @@
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 ///
 class FakeTextFile implements TextFile {
-  final String _content;
-  const FakeTextFile(this._content);
+  String contentText;
+  FakeTextFile(this.contentText);
   @override
-  Future<String> get content => Future.value(_content);
+  Future<ResultF<String>> get content => Future.value(Ok(contentText));
+  
+  @override
+  Future<void> write(String text) async {
+    contentText = text;
+  }
 
 }
\ No newline at end of file
diff --git a/test/unit/edit_field/network_dropdown_field/oil_data/fake_json_map.dart b/test/unit/edit_field/network_dropdown_field/oil_data/fake_json_map.dart
index dba1741..7b09da4 100644
--- a/test/unit/edit_field/network_dropdown_field/oil_data/fake_json_map.dart
+++ b/test/unit/edit_field/network_dropdown_field/oil_data/fake_json_map.dart
@@ -1,10 +1,11 @@
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 ///
 class FakeJsonMap<T> implements JsonMap<T> {
-  final Map<String, T> _decoded;
+  final ResultF<Map<String, T>> _decodedResult;
   ///
-  const FakeJsonMap(this._decoded);
+  const FakeJsonMap(this._decodedResult);
   //
   @override
-  Future<Map<String, T>> get decoded => Future.value(_decoded);
+  Future<ResultF<Map<String, T>>> get decoded => Future.value(_decodedResult);
 }
\ No newline at end of file
diff --git a/test/unit/edit_field/network_dropdown_field/oil_data/oil_data_names_test.dart b/test/unit/edit_field/network_dropdown_field/oil_data/oil_data_names_test.dart
index bda1cb3..2308ce9 100644
--- a/test/unit/edit_field/network_dropdown_field/oil_data/oil_data_names_test.dart
+++ b/test/unit/edit_field/network_dropdown_field/oil_data/oil_data_names_test.dart
@@ -1,5 +1,6 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:hmi_core/hmi_core.dart';
+import 'package:hmi_core/hmi_core_result_new.dart';
 import 'package:hmi_widgets/src/edit_field/network_dropdown_field/oil_data.dart';
 import 'fake_json_map.dart';
 void main() {
@@ -57,7 +58,7 @@ void main() {
         final oilJsonMap = entry['json_map'] as Map<String, Map<String, dynamic>>;
         final names = entry['names'] as List<String>;
         final oilData = OilData(
-          jsonMap: FakeJsonMap(oilJsonMap),
+          jsonMap: FakeJsonMap(Ok(oilJsonMap)),
         );
         expect(await oilData.names(), names);
       }