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══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following FormatException was thrown building Builder:
Invalid double

The relevant error-causing widget was:
  MaterialApp file:///home/nk/AndroidStudioProjects/edl_bill/lib/main.dart:11:12

When the exception was thrown, this was the stack:
#0      double.parse (dart:core-patch/double_patch.dart:111:28)
#1      _State.initState (package:edl_bill/HomeScreen.dart:21:43)
#2      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4684:58)
#3      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
...     Normal element mounting (132 frames)
#135    Element.inflateWidget (package:flutter/src/widgets/framework.dart:3490:14)
#136    MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5991:32)
...     Normal element mounting (258 frames)
#394    Element.inflateWidget (package:flutter/src/widgets/framework.dart:3490:14)
#395    Element.updateChild (package:flutter/src/widgets/framework.dart:3258:18)
#396    RenderObjectToWidgetElement._rebuild (package:flutter/src/widgets/binding.dart:1174:16)
#397    RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:1145:5)
#398    RenderObjectToWidgetAdapter.attachToRenderTree.<anonymous closure> (package:flutter/src/widgets/binding.dart:1087:17)
#399    BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2620:19)
#400    RenderObjectToWidgetAdapter.attachToRenderTree (package:flutter/src/widgets/binding.dart:1086:13)
#401    WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:927:7)
#402    WidgetsBinding.scheduleAttachRootWidget.<anonymous closure> (package:flutter/src/widgets/binding.dart:908:7)
(elided 11 frames from class _RawReceivePortImpl, class _Timer, dart:async, and dart:async-patch)

════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
The following FormatException was thrown building Builder:
Invalid double

The relevant error-causing widget was: 
  MaterialApp file:///home/nk/AndroidStudioProjects/edl_bill/lib/main.dart:11:12
When the exception was thrown, this was the stack: 
#0      double.parse (dart:core-patch/double_patch.dart:111:28)
#1      _State.initState (package:edl_bill/HomeScreen.dart:21:43)
#2      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4684:58)
#3      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
...     Normal element mounting (132 frames)
...
════════════════════════════════════════════════════════════════════════════════════════════════════

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following FormatException was thrown building Builder:
Invalid double

The relevant error-causing widget was:
  MaterialApp file:///home/nk/AndroidStudioProjects/edl_bill/lib/main.dart:11:12

When the exception was thrown, this was the stack:
#0      double.parse (dart:core-patch/double_patch.dart:111:28)
#1      _State.initState (package:edl_bill/HomeScreen.dart:21:43)
#2      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4684:58)
#3      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
...     Normal element mounting (4 frames)
#7      Element.inflateWidget (package:flutter/src/widgets/framework.dart:3490:14)
#8      Element.updateChild (package:flutter/src/widgets/framework.dart:3255:20)
#9      ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#10     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#11     StatelessElement.update (package:flutter/src/widgets/framework.dart:4627:5)
#12     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#13     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#14     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#15     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#16     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#17     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#18     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#19     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#20     StatefulElement.update (package:flutter/src/widgets/framework.dart:4751:5)
#21     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#22     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#23     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#24     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#25     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#26     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#27     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#28     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#29     StatefulElement.update (package:flutter/src/widgets/framework.dart:4751:5)
#30     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#31     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#32     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#33     StatelessElement.update (package:flutter/src/widgets/framework.dart:4627:5)
#34     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#35     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#36     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#37     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#38     StatefulElement.update (package:flutter/src/widgets/framework.dart:4751:5)
#39     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#40     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#41     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#42     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#43     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#44     ProxyElement.update (package:flutter/src/widgets/framework.dart:4906:5)
#45     _InheritedNotifierElement.update (package:flutter/src/widgets/inherited_notifier.dart:183:11)
#46     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#47     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#48     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#49     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#50     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#51     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#52     StatefulElement.update (package:flutter/src/widgets/framework.dart:4751:5)
#53     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#54     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#55     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#56     ProxyElement.update (package:flutter/src/widgets/framework.dart:4906:5)
#57     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#58     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#59     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#60     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#61     StatefulElement.update (package:flutter/src/widgets/framework.dart:4751:5)
#62     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#63     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#64     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#65     StatelessElement.update (package:flutter/src/widgets/framework.dart:4627:5)
#66     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#67     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5881:14)
#68     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#69     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#70     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#71     ProxyElement.update (package:flutter/src/widgets/framework.dart:4906:5)
#72     Element.updateChild (package:flutter/src/widgets/framework.dart:3245:15)
#73     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4571:16)
#74     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4719:11)
#75     Element.rebuild (package:flutter/src/widgets/framework.dart:4262:5)
#76     BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2667:33)
#77     WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:866:20)
#78     RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:286:5)
#79     SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1117:15)
#80     SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1056:9)
#81     SchedulerBinding.scheduleWarmUpFrame.<anonymous closure> (package:flutter/src/scheduler/binding.dart:865:7)
(elided 4 frames from class _RawReceivePortImpl, class _Timer, and dart:async-patch)

════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by widgets library ═══════════════════════════════════════════════════════
The following FormatException was thrown building Builder:
Invalid double

The relevant error-causing widget was: 
  MaterialApp file:///home/nk/AndroidStudioProjects/edl_bill/lib/main.dart:11:12
When the exception was thrown, this was the stack: 
#0      double.parse (dart:core-patch/double_patch.dart:111:28)
#1      _State.initState (package:edl_bill/HomeScreen.dart:21:43)
#2      StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4684:58)
#3      ComponentElement.mount (package:flutter/src/widgets/framework.dart:4520:5)
...     Normal element mounting (4 frames)
...
════════════════════════════════════════════════════════════════════════════════════════════════════