flash_area_is_valid function fault in ble_mesh_v0.9.1-Alpha project

[Jason]

I used SEGGER Embedded Studio to make ble_mesh_v0.9.1-Alpha project, there was an error while executing the flash_area_is_valid function, this problem occurs in the NRF51822 QFAC, I have not modified any source and setting. How do I fix this problem?

[Kristian Skordal]

Make sure you completely erase the device before programming the example. Did you compile the example with the Debug or Release configuration?