Hello!

I've just tried to build my app with one class that consists a 'dynamic' alias definition.
Code:
alias: [
    'widget.label' + MyApp.CONSTS.fields.aliasSuffix
]
And when I run
Code:
-> sencha app refresh
I get:
Code:
[ERR] C2017: Node cast failure (Expected StringLiteral but found [email protected] (Infix)
) -- unknown-file:4:4
[ERR]
[ERR] BUILD FAILED
[ERR] com.sencha.exceptions.ExParse: Expected StringLiteral but found [email protected] (I
nfix)
[ERR]   at org.apache.tools
[ERR] .ant.Project.executeTargets(Project.java:1251)
[ERR]
[ERR] Total time: 3 seconds
[ERR] The following error occurred while executing this line:
[SenchaCMDFolder]\Sencha\Cmd\5.1.3.61\plugins\ext\current\plugin.xml:403: The following error occurred while executing this li
ne:
[MyAppFolder]\.sencha\app\build-impl.xml:378: The following error occurr
ed while executing this line:
[MyAppFolder]\.sencha\app\init-impl.xml:303: com.sencha.exceptions.ExPar
se: Expected StringLiteral but found [email protected] (Infix)
[ERR]
So, is it possible at all to define aliases this way?

P.s. I'm using SenchaCMD 5.1.3.61

UPDATE:
Build fails only when I use an array of aliases! When I use
Code:
alias:  'widget.label' + MyApp.CONSTS.fields.aliasSuffix
all works fine!