我正在使用Windows10，尝试将草图上传到Arduino mega并收到此错误：
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x48
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x65
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x6c
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x6c
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x6f
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x21
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x0d
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x0a
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x54
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x49
An error occurred while uploading the sketch
我该如何解决？