Build Project to Android Error: Unable to start ADB server.

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Hello, When I try to build my Unity project to my android device, it gives the error: Unable to start ADB server. Please make sure the Android SDK is installed and is properly configured in the Editor. See the Console for more details. I have the Android SDK, NDK and JDK all set up. I have looked up for the error, but I really can't find a solution. I'm in Unity 2019.3.0a11, is it possible I have this error because I'm in an alpha version? Does anyone have a link with the steps to build Unity projects to Android? Or does anyone know how to fix this error?

Thanks in case

Answer 1

Answer by Reydros · Mar 04, 2020 at 01:17 PM

Not sure if this will help others but what fixed it for me was going to edit->preferences->external tools and then checking the boxes to use the SDK and JDK installed with unity

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Answer 2

Answer by ChangBroot · Jul 01, 2020 at 11:44 PM

I had this problem with Huawei P30 Lite and Samsung Galaxy Tab E. Installed Samsung Driver, Disabled Firewall (McAfee) and still didn't work.

Solution: I had to install Android Studio along with SDK, and during its installation, it tells you where the SDK will be installed (in my case at C:\Users[My Name]\AppData\Local\Android\Sdk). I copied this location, went to Unity -> Edit -> Preferences -> unchecked Android SDK....and replaced this new sdk folder location there. Finally, closed Unity, restarted my computer and it worked.

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Answer 3

Answer by sinjimonkey · Jul 31, 2020 at 03:49 PM

Thanks for this! I had a copy of ADB in a program that allows me to use my phone as a second monitor (XDisplay) and deleting that allowed Unity to compile.

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Answer 4

Answer by unity_03phillipsm · Sep 21, 2020 at 10:09 PM

In my case, I found that the Oculus Developer Hub program came with its own version of ADB, and that copying the following files from my Unity platform-tools folder into the Oculus Developer Hub folder resolved the issue.

Files: - adb.exe - AdbWinApi.dll - AdbWinUsbApi.dll

Unity folder: /Editor/Data/PlaybackEngines/AndroidPlayer/SDK/platform-tools

Oculus Developer Hub folder: C:/Program Files/Oculus Developer Hub/resources/bin,In my case, I found that the Oculus Developer Hub program came with its own version of ADB, and that copying the following files from my Unity platform-tools folder into the Oculus Developer Hub folder resolved the issue.

Files: - adb.exe - AdbWinApi.dll - AdbWinUsbApi.dll

Unity folder: /Editor/Data/PlaybackEngines/AndroidPlayer/SDK/platform-tools

Oculus Developer Hub folder: C:/Program Files/Oculus Developer Hub/resources/bin

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IsDon · Nov 24, 2020 at 12:44 PM 0

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I hit the same conflict between 2 different adb.exe files (Unity and Oculus Dev Hub) and I just set the Oculus Hub to use Unity's. Worked nicely.

Answer 5

Answer by ahmedaniss · Dec 09, 2020 at 03:24 AM

problem fixed here : https://youtu.be/9N8a73tewxk

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Build Project to Android Error: Unable to start ADB server.

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