Gradle 6.1.1 product Flavor with declare-stylable

I have a declaration-stylable in my res/values/attrs.xml file

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="SpannedGridLayoutManager">
        <attr name="android:orientation" />
        <attr name="spanCount" />
        <attr name="aspectRatio" format="string" />
    </declare-styleable>

    <declare-styleable name="Gauge" parent="source">
        <attr name="inverted" />
        <attr name="title"    />
        <attr name="value"    />
        <attr name="target"    />
        <attr name="maxValue" />
    </declare-styleable>

    <declare-styleable name="DualGauge" parent="source">
        <attr name="inverted" />
        <attr name="title"    />
        <attr name="valueA"   format="integer" />
        <attr name="valueB"   format="integer" />
        <attr name="maxValueA" />
        <attr name="maxValueB" />
    </declare-styleable>
</resources>

I have three productFlavors one being PS

I upgraded to gradle-6.1.1-all.zip and now get the following error

 > Task :app:processPSDebugResources FAILED
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":6987}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/inverted (aka com.roll.ps:attr/inverted) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":6987}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/maxValueA (aka com.roll.ps:attr/maxValueA) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":6987}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/maxValueB (aka com.roll.ps:attr/maxValueB) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":7146}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/inverted (aka com.roll.ps:attr/inverted) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":7146}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/value (aka com.roll.ps:attr/value) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":7146}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/target (aka com.roll.ps:attr/target) not found.\n    ","tool":"AAPT"}
    AGPBI: {"kind":"error","text":"Android resource linking failed","sources":[{"file":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml","position":{"startLine":7146}}],"original":"/Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/maxValue (aka com.roll.ps:attr/maxValue) not found.\n    ","tool":"AAPT"}

    > Task :app:javaPreCompilePSDebug

    FAILURE: Build failed with an exception.

    * What went wrong:
    Execution failed for task ':app:processPSDebugResources'.
    > A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
    > Android resource linking failed
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/inverted (aka com.roll.ps:attr/inverted) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/maxValueA (aka com.roll.ps:attr/maxValueA) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:6988: AAPT: error: resource attr/maxValueB (aka com.roll.ps:attr/maxValueB) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/inverted (aka com.roll.ps:attr/inverted) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/value (aka com.roll.ps:attr/value) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/target (aka com.roll.ps:attr/target) not found.
    /Users/Barry/Desktop/studio/QA/app/build/intermediates/incremental/mergePSDebugResources/merged.dir/values/values.xml:7147: AAPT: error: resource attr/maxValue (aka com.roll.ps:attr/maxValue) not found.

Any Help ?

I have tried

sourceSets {
        ps {
            resources.srcDirs = ["app/src/ps/res/"]
            manifest.srcFile "src/ps/AndroidManifest.xml"
        }
    }

No joy? ;(

Thanks in advance