I installed the Android Beta 7.2.9 and processed two tasks. No new tasks have downloaded in about two days. How can I get new tasks?

BOINC thinks you don't have enough disk space available. What are the "Max used storage" and "Min spare storage" in the BOINC preferences on your device set to?

2013-09-13 06:27:16.3239 [PID=9754 ]    [send] No disk space available: disk_max_used_gb 0.00GB disk_max_used_pct 50.00 disk_min_free_gb 0.00GB
2013-09-13 06:27:16.3239 [PID=9754 ]    [send] No disk space available: host.d_total 2.34GB host.d_free 1.10GB host.d_boinc_used_total 0.00GB
2013-09-13 06:27:16.3239 [PID=9754 ]    [send] No disk space available: x1 1000.00GB x2 1.16GB x3 -48.90GB x -48.90GB
2013-09-13 06:27:16.3348 [PID=9754 ]    [send] [HOST#64901] [WU#5684309 04mr09ab.3301.9070.5.16.93] WU is infeasible: Not enough disk

It appears you've got it set to 50% free disk space, and you've got 47% free. A more typical setting is 90%

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