[Bug] Can't decodebase64

Compiling code.                         0.09
Generating R file.                      0.00
Compiling generated Java code.          Error
B4A line: 24
Pattern= su.DecodeBase64(   Pattern  )
javac 1.6.0_24
src\omnicorp\playstationcollector\main.java:1486: cannot find symbol
symbol  : method NumberToString(byte[])
location: class anywheresoftware.b4a.BA
_pattern = BA.NumberToString(_su.DecodeBase64(_pattern));
             ^
1 error

dim Bytes() As Byte , Pattern As String 
Pattern= Settings.GetDefault("UserID",  "-1"  )
Bytes= su.DecodeBase64(    Pattern   ) 
      pattern= bytes

Dim SU As StringUtils = "gaCpU6ikVpymnKOro6hkmpybq6qipw=="
Dim sData1 As String
Dim bData() As Byte
bData = SU.DecodeBase64(sData)
sData1 = BytesToString(bData, 0, sData.Length, "UTF-8")

Log("DecodedData: " & sData1)

Dim su As StringUtils
Dim b() As Byte = su.DecodeBase64("gaCpU6ikVpymnKOro6hkmpybq6qipw==")
Log(BytesToString(b, 0, b.Length, "UTF8"))