There’s an internal compiler error [1]. I’m guessing compiler is failing on
<fx:Declarations> <fx:XMLList id="treeData"> <node label="Mail Box"> <node label="Inbox"> <node label="Marketing"/> <node label="Product Management"/> <node label="Personal"/> </node> <node label="Outbox"> <node label="Professional"/> <node label="Personal"/> </node> <node label="Spam"/> <node label="Sent"/> </node> </fx:XMLList> </fx:Declarations> [1] [mxmlc] MXMLJSC [mxmlc] -module-output=/mx/controls/ [mxmlc] -load-externs=C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules/bin/js-debug/link_report-js.xml [mxmlc] -js-compiler-option=--variable_map_input_file ../../gcc_variablemap.txt [mxmlc] -js-compiler-option+=--property_map_input_file ../../gcc_propertymap.txt [mxmlc] -js-compiler-option+=--externs C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules/bin/js-debug/externs_report.js [mxmlc] +playerglobal.version=11.1 [mxmlc] +env.AIR_HOME=C:\MoonshineSDKs\Flex_SDK\Flex_4.16.1_AIR_32.0 [mxmlc] +env.PLAYERGLOBAL_HOME=C:\dev\player [mxmlc] -compiler.debug=false [mxmlc] +royalelib=C:\dev\full_royale_sdk\royale-asjs/frameworks/ [mxmlc] -load-config=C:\dev\full_royale_sdk\royale-asjs/frameworks/flex-config.xml [mxmlc] -output=C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\bin-debug\mx\controls\TreeExample.swf [mxmlc] -- [mxmlc] C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules/src//mx/controls/TreeExample.mxml [mxmlc] Loading configuration: C:\dev\full_royale_sdk\royale-asjs\frameworks\flex-config.xml [mxmlc] [mxmlc] 18652 bytes written to C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\bin-debug\mx\controls\TreeExample.swf in 2.917 seconds [mxmlc] C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\src\mx\controls\TreeExample.mxml(66): col: 52 Warning: Data binding will not be able to detect assignments to 'label'. [mxmlc] [mxmlc] text="Selected Item: {selectedNode.@label}"/> [mxmlc] ^ [mxmlc] [mxmlc] Dec 30, 2021 3:44:53 PM com.google.javascript.jscomp.LoggerErrorManager println [mxmlc] WARNING: C:/dev/full_royale_sdk/royale-asjs/examples/mxroyale/tourdeflexmodules/bin/js-debug/mx/controls/mx/core/UIComponent.js:4230: WARNING - Suspicious code. This code lacks side-effects. Is there a bug? [mxmlc] } else if ((this.mx_core_UIComponent__toolTip == null || this.mx_core_UIComponent__toolTip == "") && this.mx_core_UIComponent__toolTipBead != null) { [mxmlc] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [mxmlc] [mxmlc] Dec 30, 2021 3:44:53 PM com.google.javascript.jscomp.LoggerErrorManager println [mxmlc] WARNING: externs/org/apache/royale/externsjs/inspiretree/InspireTreeDOM.js:65: WARNING - Parse error. illegal use of unknown JSDoc tag "category"; ignoring it [mxmlc] * @category DOM [mxmlc] ^ [mxmlc] [mxmlc] Dec 30, 2021 3:44:53 PM com.google.javascript.jscomp.LoggerErrorManager printSummary [mxmlc] WARNING: 0 error(s), 2 warning(s) [mxmlc] Internal error: java.lang.RuntimeException: INTERNAL COMPILER ERROR. [mxmlc] Please report this problem. [mxmlc] [mxmlc] Find MXML property names to keep parse failure: NUMBER 3.0 549 [length: 1] [source_file: C:/dev/full_royale_sdk/royale-asjs/examples/mxroyale/tourdeflexmodules/bin/js-debug/mx/controls/TreeExample.js] [mxmlc] Node(GETPROP): C:/dev/full_royale_sdk/royale-asjs/examples/mxroyale/tourdeflexmodules/bin/js-debug/mx/controls/TreeExample.js:525:0 [mxmlc] TreeExample.prototype._bindings = [ [mxmlc] Parent(ASSIGN): C:/dev/full_royale_sdk/royale-asjs/examples/mxroyale/tourdeflexmodules/bin/js-debug/mx/controls/TreeExample.js:525:0 [mxmlc] TreeExample.prototype._bindings = [ [mxmlc] com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.throwParseException(FindRoyaleMXMLPropertyNamesToKeep.java:311)com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.traverseWatchers(FindRoyaleMXMLPropertyNamesToKeep.java:301)com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.traverseWatchers(FindRoyaleMXMLPropertyNamesToKeep.java:306)com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.checkForBindings(FindRoyaleMXMLPropertyNamesToKeep.java:384)com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.visit(FindRoyaleMXMLPropertyNamesToKeep.java:43)com.google.javascript.jscomp.NodeTraversal.traverseBranch(NodeTraversal.java:908)com.google.javascript.jscomp.NodeTraversal.traverseChildren(NodeTraversal.java:1020)com.google.javascript.jscomp.NodeTraversal.traverseBranch(NodeTraversal.java:904)com.google.javascript.jscomp.NodeTraversal.traverseChildren(NodeTraversal.java:1020)com.google.javascript.jscomp.NodeTraversal.traverseBranch(NodeTraversal.java:904)com.google.javascript.jscomp.NodeTraversal.traverseChildren(NodeTraversal.java:1020)com.google.javascript.jscomp.NodeTraversal.handleScript(NodeTraversal.java:858)com.google.javascript.jscomp.NodeTraversal.traverseBranch(NodeTraversal.java:883)com.google.javascript.jscomp.NodeTraversal.traverseChildren(NodeTraversal.java:1020)com.google.javascript.jscomp.NodeTraversal.traverseBranch(NodeTraversal.java:904)com.google.javascript.jscomp.NodeTraversal.traverse(NodeTraversal.java:392)com.google.javascript.jscomp.NodeTraversal.traverse(NodeTraversal.java:402)com.google.javascript.jscomp.FindRoyaleMXMLPropertyNamesToKeep.process(FindRoyaleMXMLPropertyNamesToKeep.java:36)com.google.javascript.jscomp.RoyaleClosurePassConfig$11$1.process(RoyaleClosurePassConfig.java:1306)com.google.javascript.jscomp.PhaseOptimizer$NamedPass.process(PhaseOptimizer.java:310)com.google.javascript.jscomp.PhaseOptimizer.process(PhaseOptimizer.java:231)com.google.javascript.jscomp.Compiler.check(Compiler.java:1084)com.google.javascript.jscomp.Compiler.performChecksAndTranspilation(Compiler.java:888)com.google.javascript.jscomp.Compiler.lambda$stage1Passes$0(Compiler.java:827)com.google.javascript.jscomp.CompilerExecutor$2.call(CompilerExecutor.java:102)java.util.concurrent.FutureTask.run(FutureTask.java:266)java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)java.lang.Thread.run(Thread.java:748) [mxmlc] [mxmlc] [mxmlc] C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\src\mx\controls\TreeExample.mxml(66): col: 52 Warning: Data binding will not be able to detect assignments to 'label'. [mxmlc] [mxmlc] text="Selected Item: {selectedNode.@label}"/> [mxmlc] ^ [mxmlc] [mxmlc] 16.0516016 seconds [mxmlc] Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8 BUILD FAILED C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\build.xml:287: The following error occurred while executing this line: C:\dev\full_royale_sdk\royale-asjs\examples\mxroyale\tourdeflexmodules\build.xml:96: mxmlc task failed.