Spanish [Solucionado] No existe android support v7

#Extends: android.support.v7.app.AppCompatActivity

javac 1.8.0_201
src\com\...\aaa.java:9: error: package android.support.v7.app does not exist
public class aaa extends android.support.v7.app.AppCompatActivity implements BA.SubDelegator{
                                                             ^
Note: src\com\...\starter.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

B4A Version: 9.80
Java Version: 8
Parsing code.    (0.20s)
Building folders structure.    (0.07s)
Running custom action.    (0.07s)
Compiling code.    (1.24s)
Compiling layouts code.    (0.01s)
Organizing libraries.    (0.00s)
    (AndroidX SDK)
Generating R file.    (1.63s)
Compiling debugger engine code.    (4.17s)
Compiling generated Java code.    Error
javac 1.8.0_201
src\b4a\example\guessmynumber.java:9: error: package android.support.v7.app does not exist
public class guessmynumber extends android.support.v7.app.AppCompatActivity implements BA.SubDelegator{
                                                         ^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

#Region  Project Attributes
    #ApplicationLabel: B4A Example
    #VersionCode: 1
    #VersionName:
    'SupportedOrientations possible values: unspecified, landscape or portrait.
    #SupportedOrientations: portrait
    #CanInstallToExternalStorage: False
   
    #Extends: android.support.v7.app.AppCompatActivity     '<------------- QUITA ESTA LÍNEA DE AQUÍ, Y BÓRRALA DE LA CLASE
#End Region

#Region  Activity Attributes
    #FullScreen: False
    #IncludeTitle: True
#End Region

#Extends: android.support.v7.app.AppCompatActivity   '<------------- PON LA LÍNEA AQUÍ

Sub label1_Click
    StartActivity("TemplateLayout")
    CallSubDelayed(TemplateLayout, "Class1_Click")
End Sub
Sub label2_Click
    StartActivity("TemplateLayout")
    CallSubDelayed(TemplateLayout, "Class2_Click")
End Sub

#Region  Activity Attributes
    #Extends: android.support.v7.app.AppCompatActivity
#End Region

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("TemplateLayout")
End Sub

Sub Class1_Click
    Dim Class1 As Class1
    Class1.Initialize(Activity)
End Sub

Sub Class2_Click
    Dim Class2 As Class2
    Class2.Initialize(Activity)
End Sub