Android Question java.lang.RuntimeException: Object should first be initialized (B4XView).

Hi,
I'm triyng to use anotherdatepicker.
I create a designer with the anotherdatepicker.
When i load the designer i got this error: but i don't need to initilize it!

** Activity (dashboard) Pause, UserClosed = false **
** Activity (pazienti) Create, isFirst = true **
** Activity (pazienti) Resume **
Error occurred on line: 150 (AnotherDatePicker)
java.lang.RuntimeException: Object should first be initialized (B4XView).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:67)
at anywheresoftware.b4a.objects.B4XViewWrapper.getViewObject(B4XViewWrapper.java:102)
at anywheresoftware.b4a.objects.B4XViewWrapper.getColor(B4XViewWrapper.java:400)
at b4a.example.anotherdatepicker._datefield_textchanged(anotherdatepicker.java:583)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.objects.EditTextWrapper$1.afterTextChanged(EditTextWrapper.java:83)
at android.widget.TextView.sendAfterTextChanged(TextView.java:11816)
at android.widget.TextView.setText(TextView.java:6971)
at android.widget.TextView.setText(TextView.java:6761)
at android.widget.EditText.setText(EditText.java:145)
at android.widget.TextView.setText(TextView.java:6713)
at android.widget.TextView.setTransformationMethod(TextView.java:2924)
at android.widget.TextView.applySingleLine(TextView.java:11400)
at android.widget.TextView.setSingleLine(TextView.java:11373)
at anywheresoftware.b4a.objects.EditTextWrapper.setSingleLine(EditTextWrapper.java:140)
at b4a.example.anotherdatepicker$ResumableSub_DesignerCreateView.resume(anotherdatepicker.java:763)
at b4a.example.anotherdatepicker._designercreateview(anotherdatepicker.java:706)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
at anywheresoftware.b4a.objects.CustomViewWrapper.AfterDesignerScript(CustomViewWrapper.java:61)
at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:162)
at anywheresoftware.b4a.objects.ActivityWrapper.LoadLayout(ActivityWrapper.java:209)
at b4a.example.pazienti._button_new_click(pazienti.java:2650)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:197)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:80)
at android.view.View.performClick(View.java:8160)
at android.widget.TextView.performClick(TextView.java:16222)
at android.view.View.performClickInternal(View.java:8137)
at android.view.View.access$3700(View.java:888)
at android.view.View$PerformClick.run(View.java:30236)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:246)
at android.app.ActivityThread.main(ActivityThread.java:8653)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)