Recently I have installed fluxion on my Pi 2. There wasn't any problem in the installation process, but when I tried to use fluxion, (after choosing the language) I got the message no wireless cards found ....
It is strange because I was able to see wlan0 (and also connect to the internet) before I had selected language. And also the light on my Wi-Fi dongle goes off.
Is there any solution to fix this problem?
Finally, I could solve the problem. I bought a new wireless usb adapter. For those who are curious I will introduce model of the device. I purchased TP-Link TL-WN722N which is suitable for hacking tools in raspberry pi. It also supports monitor mode. For more information you can visit the official website.