when i connect esp8266 with the arduino i can't find port for esp8266. and espcomm upload mem failed error occurs while uploding the code.
Please dont hijack other NON related posts.
The errors you see are nearly always wrong port selection.
Have you installed the board package for the ESP's ?
What OS ?
If in doubt about what sort of information to add to your post there are some sticky posts at the top of the forum I strongly suggest you read them.