Android Question How to use CSBuilder with B4XTree?

[Theera]

<code>
B4XTree1.AddBranch2("ดอกขาว(ไม้กวาด,ลิเก)","A113","A11",Chr(0xe908),MyFont2,Colors.RGB(200,50,50))
B4XTree1.AddLeaf(cs.Initialize.Color(Colors.blue).Append("ฟีโนซาฟอบ-พี-เอทิล").PopAll,"","A1131","A113")
B4XTree1.AddLeaf("ไซฮาโลฟอบ-บิวทิล","","A1132","A113")
B4XTree1.AddLeaf("อะลิโนฟอส","","A1133","A113")
</code>
My app doesn't work .Where is error in my code? Please help me.