DVB dongle error

[Jpdies]

[size=50
0: Generic RTL2832U
Received this error when running a test on Program Dump 1090

UsingFound 1 device(s):
0: Generic RTL2832U
Using device 0: Generic RTL2832U
Kernel driver is active, or device is claimed by second instance of librtlsdr.
In the first case, please either detach or blacklist the kernel module
(dvb_usb_rtl28xxu), or enable automatic detaching at compile time.
usb_claim_interface error -6
Failed to open rtlsdr device #0.

Possibly according Satsignal.eu this is the cause.
This is because a DVB driver was added to the OS so that, er, TV could be received! This interferes with the operation of the DVB-T stick for ADS-B reception, so you need to take the steps outlined here before continuing. Re-run the test:

Used the below instructions from Satsignal.eu and created file, rebooted and still received the same error. I did unplug the DVB dongle until the reboot was complete, as suggested, but still receive the same error.
Luckily a solution is pretty straightforward. In /etc/modprobe.d create a new file with sudo, named no-rtl.conf (the actual name is not important, but the .conf is).

cd /etc/modprobe.d
sudo nano no-rtl.conf
Add the following lines to the new file:

blacklist dvb_usb_rtl28xxu
blacklist rtl2832
blacklist rtl2830
The second and third lines might not even be necessary, but on the other hand can't harm either. After a reboot dump1090 works again as intended.
Anyone have any suggestions.
Thanks
Jpdies
Problem solved. Had transposed the number 1 instead of lower case "L"