Unity android Unable to forward network traffic to device

Questions & Answers
1

Tried building to phone for testing today and am getting this error:
54871-err.png
and the 2 console error reports:

CommandInvokationFailure: Unable to forward network traffic to device. Please make sure the Android SDK is installed and is properly configured in the Editor. See the Console for more details. 
D:/androidsdk/platform-tools\adb.exe -s "4f0c7edb" forward "tcp:54999" "localabstract:Unity-com.maincharacter.test"

stderr[
error: cannot bind to socket: No error
error: cannot bind to socket: No error
]
stdout[

]
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.ADB.RunInternal (System.String[] command, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.ADB.Run (System.String[] command, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidDevice.Exec (System.String[] command, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.AndroidDevice.Forward (System.String pc, System.String device, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit)
UnityEditor.Android.PostProcessAndroidPlayer.UploadAndStartPlayer (System.String manifestName, System.String stagingArea, UnityEditor.Android.AndroidDevice device, System.String packageName, Boolean developmentPlayer, Boolean retryUpload)
UnityEditor.Android.PostProcessAndroidPlayer.PostProcessInternal (BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry)
UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry)
UnityEditor.BuildPlayerWindow:BuildPlayerAndRun()

and:

Error building Player: CommandInvokationFailure: Unable to forward network traffic to device. Please make sure the Android SDK is installed and is properly configured in the Editor. See the Console for more details. 
D:/androidsdk/platform-tools\adb.exe -s "4f0c7edb" forward "tcp:54999" "localabstract:Unity-com.maincharacter.test"

stderr[
error: cannot bind to socket: No error
error: cannot bind to socket: No error
]
stdout[

]

I’m on Unity5 with android SDK rev 24.3.4. Any help here would be awesome. If you’ll pardon the cliche, It was working fine yesterday.

3

Worked around it by disabling Development Build in Build Settings, Debug.Log* still works

56902-doahep3.png
56902-doahep3.png546×605 39.7 KB

5

Hi,
Here is my fix :

Open Cmd with admin permissions and run this command:

netstat -a -o -n | find “54999”

This will show the id of the proccess let’s say it shows :

TCP 0.0.0.0:54999 0.0.0.0:0 LISTENING 14824

Just write :

taskkill /F /PID 14824

To make sure everything is clean, you can run things manually before opening unity. :

adb forward --remove-all

adb -s “4f0c7edb” forward “tcp:54999” “localabstract:Unity-com.maincharacter.test”
I hope this helps someone.
Thanks;

7

I’m using Unity 2017.1.0xb3 on Linux. I’m getting the following error

CommandInvokationFailure: Unable to forward network traffic to device. Please make sure the Android SDK is installed and is properly configured in the Editor. See the Console for more details.

platform-tools/adb -s “DEVICE” forward “tcp:34999” “localabstract:Unity-com.package”
stderr[
error: cannot bind listener: Address already in use
]

Unity is listening on port 34999.
I’ve tried build settings, disable “Development Build” and “adb forward --remove-all” no effect. I’m using the latest android sdk tools (sdk-tools-linux-3859397.zip). I also tried tools_r25.2.5-linux.zip but got the same error.

Any idea’s?

Thanks

8

Hi all! Someone told me to put link to one of my videos here, so here it is:

This is my workaround. I hope it helps you. It’s for Linux, but I think by analogy you can do something similar on Windows too.

2

I get the same issue runing on Linux Mint when I use ‘Build And Run’. If I only do the build, it generates the apk. When I manually install that apk, it works perfectly.
I am also able to run ‘cordova run android’ in the same environment, and it works. I don’t think its the SDK, it appears to me that the install fails and throws an invalid error message.

4

I found updating to the latest JDK fixes the issue (and you can leave development build checked).

Remember to set the new path in Edit->Preferences->External Tools.

Also I found USB 3.0 ports won’t work on my PC, has to be a USB 2.0. That is probably more down to the USB driver for my LG G3 though.

6

I had same problem. I was running 2 instances of Unity Editor. Opening only one I want to profile solved the problem.