I've encountered the following error when trying to test my app:
65 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
Launching lib/main.dart on Web Server in debug mode...
Waiting for connection from debug service on Web Server...
lib/components/activity_forms/activity_form_rank_images/activity_form_rank_images_widget.dart:436:48: Error: Member not found: 'ReorderableListView.separated'.
return ReorderableListView.separated(
^^^^^^^^^
Unhandled exception:
Unsupported operation: Unsupported invalid type InvalidType(<invalid>) (InvalidType). Encountered while compiling file:///tmp/ff_service_scratch/kGgIENEER7fLyA1wXXhK/moi_m_v_p/lib/components/activity_forms/activity_form_rank_images/activity_form_rank_images_widget.dart, which contains the type: FunctionType(<invalid> Function(BuildContext)).
#0 ProgramCompiler._typeCompilationError (package:dev_compiler/src/kernel/compiler.dart:3224)
#1 ProgramCompiler._emitType (package:dev_compiler/src/kernel/compiler.dart:3185)
#2 ProgramCompiler._emitFunctionTagged (package:dev_compiler/src/kernel/compiler.dart:3031)
#3 ProgramCompiler.visitFunctionExpression (package:dev_compiler/src/kernel/compiler.dart:7027)
#4 FunctionExpression.accept (package:kernel/ast.dart:8588)
#5 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#6 ProgramCompiler._emitNamedExpression (package:dev_compiler/src/kernel/compiler.dart:6306)
#7 ProgramCompiler._emitArgumentList (package:dev_compiler/src/kernel/compiler.dart:6298)
#8 ProgramCompiler.visitConstructorInvocation (package:dev_compiler/src/kernel/compiler.dart:6520)
#9 ConstructorInvocation.accept (package:kernel/ast.dart:6666)
#10 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#11 ProgramCompiler._emitNamedExpression (package:dev_compiler/src/kernel/compiler.dart:6306)
#12 ProgramCompiler._emitArgumentList (package:dev_compiler/src/kernel/compiler.dart:6298)
#13 ProgramCompiler.visitConstructorInvocation (package:dev_compiler/src/kernel/compiler.dart:6520)
#14 ConstructorInvocation.accept (package:kernel/ast.dart:6666)
#15 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#16 ProgramCompiler.visitReturnStatement (package:dev_compiler/src/kernel/compiler.dart:4615)
#17 ReturnStatement.accept (package:kernel/ast.dart:10140)
#18 ProgramCompiler._visitStatement (package:dev_compiler/src/kernel/compiler.dart:3834)
#19 MappedIterable.elementAt (dart:_internal/iterable.dart:385)
#20 ListIterator.moveNext (dart:_internal/iterable.dart:354)
#21 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189)
#22 new _GrowableList.of (dart:core-patch/growable_array.dart:150)
#23 new List.of (dart:core-patch/array_patch.dart:39)
#24 SetBase.toList (dart:collection/set.dart:119)
#25 ProgramCompiler.visitBlock (package:dev_compiler/src/kernel/compiler.dart:4019)
#26 Block.accept (package:kernel/ast.dart:9181)
#27 ProgramCompiler._visitStatement (package:dev_compiler/src/kernel/compiler.dart:3834)
#28 ProgramCompiler._emitFunctionScopedBody (package:dev_compiler/src/kernel/compiler.dart:3867)
#29 ProgramCompiler._emitSyncFunctionBody.<anonymous closure> (package:dev_compiler/src/kernel/compiler.dart:3573)
#30 ProgramCompiler._withLetScope (package:dev_compiler/src/kernel/compiler.dart:2553)
#31 ProgramCompiler._withCurrentFunction (package:dev_compiler/src/kernel/compiler.dart:3610)
#32 ProgramCompiler._emitSyncFunctionBody (package:dev_compiler/src/kernel/compiler.dart:3569)
#33 ProgramCompiler._emitFunction (package:dev_compiler/src/kernel/compiler.dart:3385)
#34 ProgramCompiler._emitArrowFunction (package:dev_compiler/src/kernel/compiler.dart:7032)
#35 ProgramCompiler.visitFunctionExpression (package:dev_compiler/src/kernel/compiler.dart:7025)
#36 FunctionExpression.accept (package:kernel/ast.dart:8588)
#37 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#38 ProgramCompiler._emitNamedExpression (package:dev_compiler/src/kernel/compiler.dart:6306)
#39 ProgramCompiler._emitArgumentList (package:dev_compiler/src/kernel/compiler.dart:6298)
#40 ProgramCompiler.visitConstructorInvocation (package:dev_compiler/src/kernel/compiler.dart:6520)
#41 ConstructorInvocation.accept (package:kernel/ast.dart:6666)
#42 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#43 ProgramCompiler._emitNamedExpression (package:dev_compiler/src/kernel/compiler.dart:6306)
#44 ProgramCompiler._emitArgumentList (package:dev_compiler/src/kernel/compiler.dart:6298)
#45 ProgramCompiler.visitConstructorInvocation (package:dev_compiler/src/kernel/compiler.dart:6520)
#46 ConstructorInvocation.accept (package:kernel/ast.dart:6666)
#47 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#48 MappedIterable.elementAt (dart:_internal/iterable.dart:385)
#49 ListIterator.moveNext (dart:_internal/iterable.dart:354)
#50 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189)
#51 new _GrowableList.of (dart:core-patch/growable_array.dart:150)
#52 new List.of (dart:core-patch/array_patch.dart:39)
#53 SetBase.toList (dart:collection/set.dart:119)
#54 ProgramCompiler._visitExpressionList (package:dev_compiler/src/kernel/compiler.dart:3888)
#55 ProgramCompiler.visitListLiteral (package:dev_compiler/src/kernel/compiler.dart:6905)
#56 ListLiteral.accept (package:kernel/ast.dart:8142)
#57 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#58 ProgramCompiler._emitNamedExpression (package:dev_compiler/src/kernel/compiler.dart:6306)
#59 ProgramCompiler._emitArgumentList (package:dev_compiler/src/kernel/compiler.dart:6298)
#60 ProgramCompiler.visitConstructorInvocation (package:dev_compiler/src/kernel/compiler.dart:6520)
#61 ConstructorInvocation.accept (package:kernel/ast.dart:6666)
#62 ProgramCompiler._visitExpression (package:dev_compiler/src/kernel/compiler.dart:3925)
#63 ProgramCompiler.visitReturnStatement (package:dev_compiler/src/kernel/compiler.dart:4615)
#64 ReturnStatement.accept (package:kernel/ast.dart:10140)
#65 ProgramCompiler._visitStatement (package:dev_compiler/src/kernel/compiler.dart:3834)
#66 MappedIterable.elementAt (dart:_internal/iterable.dart:385)
#67 ListIterator.moveNext (dart:_internal/iterable.dart:354)
#68 new _GrowableList._ofEfficientLengthIterable (dart:core-patch/growable_array.dart:189)
#69 new _GrowableList.of (dart:core-patch/growable_array.dart:150)
#70 new List.of (dart:core-patch/array_patch.dart:39)
#71 SetBase.toList (dart:collection/set.dart:119)
#72 ProgramCompiler.visitBlock (package:dev_compiler/src/kernel/compiler.dart:4019)
#73 Block.accept (package:kernel/ast.dart:9181)
#74 ProgramCompiler._visitStatement (package:dev_compiler/src/kernel/compiler.dart:3834)
#75 ProgramCompiler._emitFunctionScopedBody (package:dev_compiler/src/kernel/compiler.dart:3867)
#76 ProgramCompiler._emitSyncFunctionBody.<anonymous closure> (package:dev_compiler/src/kernel/compiler.dart:3573)
#77 ProgramCompiler._withLetScope (package:dev_compiler/src/kernel/compiler.dart:2553)
#78 ProgramCompiler._withCurrentFunction (package:dev_compiler/src/kernel/compiler.dart:3610)
#79 ProgramCompiler._emitSyncFunctionBody (package:dev_compiler/src/kernel/compiler.dart:3569)
#80 ProgramCompiler._emitFunction (package:dev_compiler/src/kernel/compiler.dart:3385)
#81 ProgramCompiler._emitMethodDeclaration.<anonymous closure> (package:dev_compiler/src/kernel/compiler.dart:2120)
#82 ProgramCompiler._withMethodDeclarationContext (package:dev_compiler/src/kernel/compiler.dart:3637)
#83 ProgramCompiler._emitMethodDeclaration (package:dev_compiler/src/kernel/compiler.dart:2119)
#84 ProgramCompiler._emitClassMethods (package:dev_compiler/src/kernel/compiler.dart:2060)
#85 ProgramCompiler._emitClassDeclaration (package:dev_compiler/src/kernel/compiler.dart:905)
#86 ProgramCompiler._emitClass (package:dev_compiler/src/kernel/compiler.dart:819)
#87 List.forEach (dart:core-patch/growable_array.dart:417)
#88 ProgramCompiler._emitLibrary (package:dev_compiler/src/kernel/compiler.dart:757)
#89 List.forEach (dart:core-patch/growable_array.dart:417)
#90 ProgramCompiler.emitModule (package:dev_compiler/src/kernel/compiler.dart:486)
#91 IncrementalJavaScriptBundler.compile (package:frontend_server/src/javascript_bundle.dart:221)
the Dart compiler exited unexpectedly.
Waiting for connection from debug service on Web Server... 37.9s
Failed to compile application.