Dart Migration Error

[VenkateshSiddani]

Flutter Version -
Flutter 2.2.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 02c026b03c (3 weeks ago) • 2021-05-27 12:24:44 -0700
Engine • revision 0fdb562ac8
Tools • Dart 2.13.1

To attempt to perform migration anyway, you may re-run with
--ignore-exceptions.

Exception details:

NoSuchMethodError: The getter 'node' was called on null.
Receiver: null
Tried calling: node at offset 129337 in /Users/773777/Desktop/Venky/WorkSpace/WorkingCode_AID/CTS_GIT/Stable_2.2.1/AID/aid/lib/Master/ResourceMaster/ResourceMasterView.dart (Singleton?.profile)

#0 EdgeBuilder._handlePropertyAccess (package:nnbd_migration/src/edge_builder.dart:3017:47)
#1 EdgeBuilder.visitPropertyAccess (package:nnbd_migration/src/edge_builder.dart:1451:12)
#2 PropertyAccessImpl.accept (package:analyzer/src/dart/ast/ast.dart:8314:50)
#3 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#4 EdgeBuilder._handlePropertyAccess (package:nnbd_migration/src/edge_builder.dart:2981:20)
#5 EdgeBuilder.visitPropertyAccess (package:nnbd_migration/src/edge_builder.dart:1451:12)
#6 PropertyAccessImpl.accept (package:analyzer/src/dart/ast/ast.dart:8314:50)
#7 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#8 EdgeBuilder.visitBinaryExpression (package:nnbd_migration/src/edge_builder.dart:486:22)
#9 BinaryExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:951:50)
#10 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#11 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#12 EdgeBuilder._handleInvocationArguments (package:nnbd_migration/src/edge_builder.dart:2937:7)
#13 EdgeBuilder.visitInstanceCreationExpression (package:nnbd_migration/src/edge_builder.dart:1154:5)
#14 InstanceCreationExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:6054:15)
#15 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#16 EdgeBuilder.visitConditionalExpression. (package:nnbd_migration/src/edge_builder.dart:688:20)
#17 ScopedSet.doScoped (package:nnbd_migration/src/utilities/scoped_set.dart:44:13)
#18 EdgeBuilder.visitConditionalExpression (package:nnbd_migration/src/edge_builder.dart:667:26)
#19 ConditionalExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:2232:15)
#20 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#21 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#22 EdgeBuilder._handleInvocationArguments (package:nnbd_migration/src/edge_builder.dart:2937:7)
#23 EdgeBuilder.visitInstanceCreationExpression (package:nnbd_migration/src/edge_builder.dart:1154:5)
#24 InstanceCreationExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:6054:15)
#25 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#26 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#27 EdgeBuilder._handleCollectionElement (package:nnbd_migration/src/edge_builder.dart:2438:14)
#28 ListMixin.forEach (dart:collection/list.dart:86:13)
#29 EdgeBuilder.visitListLiteral (package:nnbd_migration/src/edge_builder.dart:1224:21)
#30 ListLiteralImpl.accept (package:analyzer/src/dart/ast/ast.dart:6675:50)
#31 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#32 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#33 EdgeBuilder._handleInvocationArguments (package:nnbd_migration/src/edge_builder.dart:2937:7)
#34 EdgeBuilder.visitInstanceCreationExpression (package:nnbd_migration/src/edge_builder.dart:1154:5)
#35 InstanceCreationExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:6054:15)
#36 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#37 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#38 EdgeBuilder._handleInvocationArguments (package:nnbd_migration/src/edge_builder.dart:2937:7)
#39 EdgeBuilder.visitInstanceCreationExpression (package:nnbd_migration/src/edge_builder.dart:1154:5)
#40 InstanceCreationExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:6054:15)
#41 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#42 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#43 EdgeBuilder._handleInvocationArguments (package:nnbd_migration/src/edge_builder.dart:2937:7)
#44 EdgeBuilder.visitInstanceCreationExpression (package:nnbd_migration/src/edge_builder.dart:1154:5)
#45 InstanceCreationExpressionImpl.accept (package:analyzer/src/dart/ast/ast.dart:6054:15)
#46 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#47 EdgeBuilder._handleAssignment (package:nnbd_migration/src/edge_builder.dart:2331:20)
#48 EdgeBuilder.visitReturnStatement (package:nnbd_migration/src/edge_builder.dart:1498:7)
#49 ReturnStatementImpl.accept (package:analyzer/src/dart/ast/ast.dart:8482:50)
#50 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#51 EdgeBuilder.visitNode (package:nnbd_migration/src/edge_builder.dart:1340:9)
#52 GeneralizingAstVisitor.visitStatement (package:analyzer/dart/ast/visitor.dart:521:40)
#53 GeneralizingAstVisitor.visitBlock (package:analyzer/dart/ast/visitor.dart:165:32)
#54 BlockImpl.accept (package:analyzer/src/dart/ast/ast.dart:1065:50)
#55 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#56 EdgeBuilder.visitNode (package:nnbd_migration/src/edge_builder.dart:1340:9)
#57 GeneralizingAstVisitor.visitFunctionBody (package:analyzer/dart/ast/visitor.dart:326:46)
#58 GeneralizingAstVisitor.visitBlockFunctionBody (package:analyzer/dart/ast/visitor.dart:168:56)
#59 BlockFunctionBodyImpl.accept (package:analyzer/src/dart/ast/ast.dart:1020:50)
#60 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#61 EdgeBuilder._handleExecutableDeclaration (package:nnbd_migration/src/edge_builder.dart:2490:7)
#62 EdgeBuilder.visitMethodDeclaration (package:nnbd_migration/src/edge_builder.dart:1243:5)
#63 MethodDeclarationImpl.accept (package:analyzer/src/dart/ast/ast.dart:6942:50)
#64 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#65 EdgeBuilder._dispatchList (package:nnbd_migration/src/edge_builder.dart:2229:7)
#66 EdgeBuilder.visitClassOrMixinOrExtensionDeclaration (package:nnbd_migration/src/edge_builder.dart:607:7)
#67 EdgeBuilder.visitClassDeclaration (package:nnbd_migration/src/edge_builder.dart:574:5)
#68 ClassDeclarationImpl.accept (package:analyzer/src/dart/ast/ast.dart:1514:50)
#69 EdgeBuilder._dispatch (package:nnbd_migration/src/edge_builder.dart:2207:24)
#70 EdgeBuilder.visitNode (package:nnbd_migration/src/edge_builder.dart:1340:9)
#71 GeneralizingAstVisitor.visitCompilationUnit (package:analyzer/dart/ast/visitor.dart:202:52)
#72 CompletenessTracker.visitCompilationUnit. (package:nnbd_migration/src/utilities/completeness_tracker.dart:52:24)
#73 PermissiveModeVisitor.reportExceptionsIfPermissive (package:nnbd_migration/src/utilities/permissive_mode.dart:26:24)
#74 CompletenessTracker.visitCompilationUnit (package:nnbd_migration/src/utilities/completeness_tracker.dart:43:5)
#75 CompilationUnitImpl.accept (package:analyzer/src/dart/ast/ast.dart:2105:50)
#76 NullabilityMigrationImpl.processInput (package:nnbd_migration/src/nullability_migration_impl.dart:244:12)
#77 NonNullableFix.processUnit (package:nnbd_migration/src/front_end/non_nullable_fix.dart:164:15)
#78 _FixCodeProcessor.runLaterPhases. (package:nnbd_migration/migration_cli.dart:1152:19)
#79 _FixCodeProcessor.runLaterPhases. (package:nnbd_migration/migration_cli.dart:1150:28)
#80 _FixCodeProcessor.processResources (package:nnbd_migration/migration_cli.dart:1079:30)

#81 _FixCodeProcessor.runLaterPhases (package:nnbd_migration/migration_cli.dart:1150:5)

#82 MigrationCliRunner.run (package:nnbd_migration/migration_cli.dart:747:24)

#83 MigrateCommand.run (package:nnbd_migration/migration_cli.dart:184:7)

#84 CommandRunner.runCommand (package:args/command_runner.dart:196:13)

#85 DartdevRunner.runCommand (package:dartdev/dartdev.dart:199:18)

#86 runDartdev (package:dartdev/dartdev.dart:53:16)

#87 main (file:///opt/s/w/ir/cache/builder/src/third_party/dart/pkg/dartdev/bin/dartdev.dart:11:3)

[stereotype441]

As of 1c7fe71, the null safety migration tool has been removed from active development and retired. No further work on the tool is planned.

If you still need help, or you believe this issue has been closed in error, please feel free to reopen.