compile feathers-mxml.swc using ant mxml produces errors

Question

we'd like to use mxml with feathers, but every time we run ant mxml we get the following errors. here are the instructions we are using: https://github.com/joshtynjala/feathers/issues/186.

c:\Users\Win732\Downloads\feathers-master\feathers-master>ant mxml<br />
Buildfile: c:\Users\Win732\Downloads\feathers-master\feathers-master\build.xml</p>
<p>-prepare:<br />
[delete] Deleting directory c:\Users\Win732\Downloads\feathers-master\feathers-master\output</p>
 <p>-starling:<br />
 [echo] Building starling.swc<br />
 [java] Loading configuration: C:\Program Files\Adobe\Adobe Flash Builder 4.7\eclipse\plugins\com.adobe.flash.compiler_4.7.0.349722\AIRSDK\frameworks\flex-config.xml<br />
 [java]<br />
 [java] 175059 bytes written to C:\Users\Win732\Downloads\feathers-master\feathers-master\output\dependencies\starling.swc in 10.868 seconds</p>
<p>mxml:<br />
 [echo] Building feathers-mxml.swc<br />
 [java] Loading configuration file C:\Program Files\Adobe\Adobe Flash Builder 4.7\sdks\4.6.0-air3.6\frameworks\flex-config.xml<br />
 [java] C:\Users\Win732\Downloads\feathers-master\feathers-master\source\feathers\core\FocusManager.as(117): col: 13 Error: Implicit coercion of a value of type String to<br />
an unrelated type starling.display:Stage.<br />
 [java]<br />
 [java]                             for(var stage:Stage in STAGE_TO_STACK)    
 [java]                                     ^<br />
 [java]<br />
 [java] C:\Users\Win732\Downloads\feathers-master\feathers- master\source\feathers\controls\supportClasses\TextFieldViewPort.as(754): col:  54 Error: Access of possibly unde<br />
 fined property contentsScaleFactor through a reference with static type   flash.display:Stage.<br />
 [java]<br />
 [java]                             nativeScaleFactor =  Starling.current.nativeStage.contentsScaleFactor;<br />
 [java]                                                                                   
 [java]<br />
 [java] C:\Users\Win732\Downloads\feathers-master\feathers- master\source\feathers\controls\text\StageTextTextEditor.as(966): col: 54 Error:  Access of possibly undefined property contentsScaleFactor through a reference with static type   flash.display:Stage.<br />
 [java]<br />
 [java]                             nativeScaleFactor =    Starling.current.nativeStage.contentsScaleFactor;<br />
 [java]                                                                              
 [java]<br />
 [java] C:\Users\Win732\Downloads\feathers-master\feathers-master\source\feathers\controls\text\StageTextTextEditor.as(1487): col: 54 Error: Access of possibly undefined property contentsScaleFactor through a reference with static type flash.display:Stage.<br />
 [java]<br />
 [java]                             nativeScaleFactor = Starling.current.nativeStage.contentsScaleFactor;<br />
 [java]                                                                            

here is our sdk-properties file:

The location of the AIR SDK with ASC 2.0<br />
airsdk.root = C:/Program Files/Adobe/Adobe Flash Builder     4.7/eclipse/plugins/com.adobe.flash.compiler_4.7.0.349722/AIRSDK<br />
airsdk.bin = ${airsdk.root}/bin<br />
airsdk.lib = ${airsdk.root}/lib<br />
airsdk.config = ${airsdk.root}/frameworks/flex-config.xml<br />
airsdk.framework = ${airsdk.root}/frameworks</p>
<p># path to compiler jars<br />
asdoc = ${airsdk.lib}/legacy/asdoc.jar<br />
compc = ${airsdk.lib}/compc-cli.jar<br />
mxmlc = ${airsdk.lib}/mxmlc-cli.jar<br />
adt = ${airsdk.lib}/adt.jar</p>
<p># The location of the Flex SDK, to build Feathers with MXML support.<br />
# Override flexsdk.root in sdk.local.properties (create that file if it<br />
# doesn't already exist).<br />
flexsdk.root = C:/Program Files/Adobe/Adobe Flash Builder 4.7/sdks/4.6.0-    air3.6<br />
flexsdk.lib = ${flexsdk.root}/lib<br />
flexframework.root = ${flexsdk.root}/frameworks<br />
flexframework.lib = ${flexframework.root}/libs<br />
flex.compc = ${flexsdk.lib}/compc.jar<br />

here is our build.properties file:

starling.root = ${basedir}/third-party/starling/src<br />
source.root = ${basedir}/source<br />
examples.root = ${basedir}/examples<br />
themes.root = ${basedir}/themes</p>
<p>output.path = ${basedir}/output<br />
dependency.output = ${output.path}/dependencies<br />
swc.output = ${output.path}/swc<br />
docs.output = ${output.path}/documentation<br />
source.output = ${output.path}/source<br />
examples.output = ${output.path}/examples<br />
themes.output = ${output.path}/themes</p>
<p>swf.version = 18</p>
<p>mxml.namespace = library://ns.feathersui.com/mxml</p>
<p>feathers.version = 2.0 PRERELEASE</p>
<p>footer.text = <a href='http://feathersui.com/'>Feathers Website</a> | <a     href='http://wiki.starling-framework.org/feathers/start'>Feathers     Documentation</a> | <a href='https://github.com/joshtynjala/feathers'>Github     Project</a> | <a href='http://forum.starling-    framework.org/forum/feathers'>Support Forum</a><br />

we ran into these issues initially, but we're able to fix:
1) /third-party/starling not found
2) point starling.root to /src

Answer 1

per the feathers dev it's a bug:

http://forum.starling-framework.org/topic/compile-feathers-mxmlswc-using-ant-mxml-produces-errors

https://github.com/joshtynjala/feathers/issues/876