Develop Reference

Android Studio wont recognize Nexus 7 as device

I am having trouble running an app I am developing in Android Studio on my Nexus 7. I have successfully gotten this to work before using the same tablet and computer (running Windows 8), but since having my laptop repaired and everything wiped I'm convinced something with my dev environment is messed up.
When I go to run the project, there are no available devices, so it is not recognizing my Nexus 7 anymore.
Things I have tried
making sure my computer recognizes the device and that I have the Nexus 7 driver installed from ASUS
going to the SDK manager and ensuring I have the Google USB driver installed
closing Android Studio and re opening it, restarting my computer, restarting my Nexus 7
killing adb.exe from the task manager
ensuring I have USB debugging enabled and toggling that on and off
switching from MTP to PTP and back again (currently connected as MTP, not sure if that is correct)
Any help would be greatly appreciated. This is very frustrating and I would like to just get back to developing again.
Update- I just noticed that when I go to developer options, "Wait for debugger" (near where you toggle USB Debugging) is grayed out. I think this has something to do with it but I'm not sure how to enable it.

I got it!
This was at least the issue in my case, I hope maybe this will help someone someday, apparently I had not installed the adb driver properly:
Search for Device Manager from the search bar on the start screen
Open Device manager, click on your Android device
Select"Update Driver Software"
BOOM. Now Android Studio recognizes the device.
I know this may not be the solution for everyone, but its worth a shot if you are having trouble testing apps on your device.

Between upgrading my second-gen Nexus 7 to Android 5.0.x and Android Studio leaving beta I lost the ability to debug on my tablet.
To get this working again I used a combination of the above advice.
I grabbed a copy of the USB Driver from Asus, but updating the Device in Device Manager and pointing to the unzipped files wasn't enough.
The next step was to point Device Manager to the Android Studio sdk directory (on a 64-bit Windows 8 install that was C:\Program Files (x86)\Android\sdk - beta versions of Android Studio - or %localappdata%\Android\sdk - switched to in 1.x) and then things worked just fine again.

Another possible reason that you may not be able to connect is:
Don't forget to enable debugging mode in Android setting.

I have had the same problem, although just getting started with my Nexus 5 and windows 7. I installed google usb driver package using SDK manager first, computer recognized phone but studio could not find it. Went in to manually update driver for phone but update driver couldnt find it, downloaded driver separately and pointed it to directory path, driver installed then studio found it and ran fine.

Galaxt tab 3 mini connecting to android studio

I want to try to test my applications I made in Android Studio on my
Samsung Galaxy tab 3 mini, which I bought for developing applications.
Unfortunately, Android Studio does not recognize my Tab 3 mini.
I reïnstalled Adroid Studio.
I enabled the developmer mode.
After this I turned on the USB Debugging
In SDK MANAGER: I downloaded the Google USB Driver
And also downloaded the adb on http://www.teamandroid.com/download-android-usb-drivers/
Stil Android Studio does not recognize my tablet. Can anyone help me with this problem?

After installing the Samsung Kies program for windows, it worked perfectly!
So I hope that people with the same problem can use this solution :)
Thanks Aegis for the answer.

How do I get Eclipse with Android SDK running on Windows 8 to debug my app on my phone?

I can't imagine I'm the first person to have had this problem, yet stackoverflow did not recommend relevant questions. Sorry if it has been posted before.
I'm currently developing an android app, and I (laboriously) was able to get it working on Windows 8. I can run and debug my apps using the emulator, but I can't run them on my phone. My phone's version is 2.3.5 (api 10), I've installed the google usb drivers using the SDK manager, and I have the USB debugging setting checked off on my phone. I have been able to run my apps before when I loaded them from Windows 7. Any help would be much appreciated.
Edit: Phone is a Sprint HTC model number PC36100

I have a Samsung phone and the Google USB Driver didn't work so I had to download and install Kies software (which has the driver for my Samsung phone) restarted windows and everything worked fine. I suggest you go to your phone manufacturer's site and download a proper driver. Good luck

Debugging android app on device wont work

I am having trouble debugging my android app on my phone. My Phone is an LG Optimus G running on android version 4.0.4. Everywhere says to update the driver, but when I do that, my computer doesn't recognize it. I have android ADT installed with SDK versions 4.2, 4.0.3, 2.3.3, and 2.2. I think it might be the fact that my phone is a 4.0.4 and not 4.0.3. And I have USB debugging enabled on my phone. The emulator is just to choppy and laggy to debug on. And one more thing, I have tried debugging already and it has not found the device, although i can find all of the files and pictures on File Explorer. Please help.

If you are on Windows I suggest you try downloading PdaNet http://pdanet.co/, this app is used to share Internet from your android phone to your PC, BUT ALSO helps you install the correct drivers for your Android.
I've found that using this program is the most simple way to get most Android phones working on Windows, plus if you don't want the software you can just uninstall it and the drivers will be kept.

Debugging an Android app in Eclipse using the handset

I am just starting to learn Android development using the Android SDK and Eclipse. I can get my HelloWorld starting app to run in the device emulator, but not on my Verizon Droid handset. I have downloaded the drivers for Windows 7 and I can see the files on the handset in Windows Explorer, so I'm assuming I have the drivers working. I have enabled the USB Debugging on the handset.
The problem is that when I set the Debug mode to Manual in Eclipse, I do not see my device in the "Choose device" list. What am I missing?

Before you connect the handset, do you have the handset drivers installed on the PC? If so, without running the Eclipse if you connect the handset to PC, does a pop up show up on bottom right saying "your drivers are installed and your device is ready to use"? (assuming windows development environment)
Before developing/testing on handset you should be able to seamlessly establish handset and PC connectivity. Only then will you be able to use handset for Android development.

Try Installing Samsung Kies. When installing Kies, it utomatically install the drivers for your device.I faced the similar issue before insatalling kies, after installing it.my problem is slved, i am able to see the device in eclipse in DDMS perspective.