Can't load app if sectors are erased

Can't load app if sectors are erasedhttps://devzone.nordicsemi.com/f/nordic-q-a/10089/can-t-load-app-if-sectors-are-erasedI'm having a strange problem. I'm running the nRF51-DK with a dual-bank bootloader, S110 soft device, and my app under gcc. I'm using Eclipse Luna as my develpoment/debug platform. If I erase the flash (nrfjprog -e), flash the softdevice (make flash_softdeviceen-USTelligent Community 13Thu, 05 Nov 2015 06:29:23 GMTRE: Can't load app if sectors are erasedhttps://devzone.nordicsemi.com/thread/37410?ContentTypeID=1Thu, 05 Nov 2015 06:29:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:da6f52c5-d5f3-43e5-ad09-021fb562bd9atesty<p>Just read <a href="https://devzone.nordicsemi.com/blogs/685/common-faq-on-dfu/">this</a> (letter E) and search forum for the appropriate app_valid hex file.</p><div style="clear:both;"></div>