Failed to receive answer to READ command.
This error happens mostly due to high RTCK/TCK sampling rate. If You're using "Sample at Max" RTCK settings, set RTCK to lower value, for example to 1MHz. If You're using Fixed TCK, set it to lower value.
This problem can be also caused by bad connection, or bad 20pin ribbon cable. In some cases, it can be due to faulty target device hardware.