خطای error: cannot access PagerAdapter mostCurrent._pc.Initialize(mostCurrent.activityBA);

[Omid Isa 0]

با سلام دوستان عزیز برنامه هنگام compile با خطای زیر مواجه میشه لطفا راهنمایی کنید

B4A Version: 12.50
Parsing code.    (0.08s)
	Java Version: 8
Building folders structure.    (0.03s)
Compiling code.    (0.21s)
Compiling layouts code.    (0.00s)
Organizing libraries.    (0.00s)
	(AndroidX SDK)
Compiling resources    (0.09s)
Linking resources    (2.39s)
Compiling debugger engine code.    (2.20s)
Compiling generated Java code.    Error
B4A line: 61
PC.Initialize
javac 1.8.0_381
src\social\numbers\main.java:511: error: cannot access PagerAdapter
mostCurrent._pc.Initialize(mostCurrent.activityBA);
               ^
  class file for android.support.v4.view.PagerAdapter not found

sdk33ورژن نرم افزار 12.50