adb is not responding in android studio

Question

i am using android studio and it was working fine till yesterday. today when i tried to run the App. i received the error shown in the image below.

i looked for solution in this website and i did the following but nothing solved the issue:

1-killed the adb server manually. but when i tried to restart it manully,, it could not start.

2-uninstalled android studio and resinstalled it again.

3- i build the project using Build -> make project

and nothing of the above mentioned steps solved the problem.

please let me know how to solve it?

Answer 1

I solved it by:

1- ctrl + Alt+ del

2-go to process tab

3-look for "explorer.exe"

4-right click on it and choose "end process tree"

5-go to File->new task->write "explorer.exe"

Answer 2

Do the following steps sequentially... Step1:

Tools > Android > (Uncheck) Enable ADB Integration

Step 2:

Tools > Android > (Check) Enable ADB Integration