can not package android project error "DownloadShim.java:3: error: cannot find symbol"

Development Programming & Scripting
,
1

Screenshot 2567-07-24 at 04.07.04
Screenshot 2567-07-24 at 04.07.041920×1025 227 KB

Screenshot 2567-07-24 at 04.09.08
Screenshot 2567-07-24 at 04.09.082182×1216 242 KB

Screenshot 2567-07-24 at 04.09.54
Screenshot 2567-07-24 at 04.09.541464×1216 180 KB

Screenshot 2567-07-24 at 04.10.08
Screenshot 2567-07-24 at 04.10.081464×1216 125 KB

Screenshot 2567-07-24 at 04.10.19
Screenshot 2567-07-24 at 04.10.191464×1216 138 KB

Screenshot 2567-07-24 at 04.10.23
Screenshot 2567-07-24 at 04.10.231464×1216 167 KB

how can i fix this ?