[TextView] Crash when using custom style

Description: I am facing a crash at TextView after update my Material Android Library to version 1.2.0 from 1.1.0. Error Code:

Error inflating class TextView
Caused by: java.lang.IllegalArgumentException: Font {path=null, style=FontStyle { weight=400, slant=0}, ttcIndex=0, axes=, localeList=, buffer=java.nio.DirectByteBuffer[pos=0 lim=433584 cap=433584]} has already been added

Source code: This is my TextView element.

<TextView
    android:id="@+id/dashboardMessageTV"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#FFF3EF"
    android:drawableStart="@drawable/ic_info"
    android:drawablePadding="4dp"
    android:gravity="start|center_vertical"
    android:paddingStart="4dp"
    android:paddingTop="8dp"
    android:paddingEnd="4dp"
    android:paddingBottom="8dp"
    android:textAlignment="gravity"
    android:textAppearance="@style/CustomTextParagraph"
    android:visibility="gone"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent" />

And this is my CustomTextParagraph style.

<style name="CustomTextParagraph" parent="@android:style/TextAppearance.Small">
    <item name="android:textStyle">normal</item>
    <item name="android:fontFamily">@font/sf_pro</item>
    <item name="android:textColor">@color/darkGray</item>
</style>

This is my theme parent.

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">

Android API version: Android 10 (API level 29)

Material Library version: implementation 'com.google.android.material:material:1.2.0'

Device: Xiao Mi 9

[gabrielemariotti]

Check your @font/sf_pro.

This kind of error in shown when you try to register multiple fonts with the same style and weight into the same font family (and it is related to androidx.core version 1.2.0 and higher).

[gabrielemariotti]

The issue should be here because both font elements have the same values for the fontStyle and fontWeight:

    <font
        app:font="@font/sf_pro_regular"
        app:fontStyle="normal"
        app:fontWeight="400" />
    <font
        app:font="@font/sf_pro_medium"
        app:fontStyle="normal"
        app:fontWeight="400" />