Failed getting available Android API levels. Make sure your android sdk tools version is 25 or highe

.

 

I have had similar experiences with Unity 2018.3.2f1 and 2018.3.3f1, but not with Unity 2018.2.20f1

 

For anyone who still have this problem , you have to change your api levels , simply go to player settings and change the target android to be kitkat or higher , this worked for me after 2 days of confusion.

 

Failed getting available Android API levels. Make sure your android sdk tools version is 25 or higher and you have internet connection.
System.Threading.ThreadHelper:ThreadStart()

Anybody have solution of this problem please..
Thank you.

 

Where is the Android manifest file?

 

i am using facebook AudienceNetwork,
and Android manifest file is on this folder:= AudienceNetwork/Plugins/Android/AndroidManifest

 

I use Unity 2018.2.21f1. the results of build apk can not open on mobile ..
what is the cause. please the solution. thanks

 

I have the same problem with Version 2018.4.14f1, details are as below

Failed getting available Android API levels. Make sure your android sdk tools version is 25 or higher and you have internet connection.
System.Threading.ThreadHelper:ThreadStart()

 

Failed getting available Android API levels. Make sure your android sdk tools version is 25 or higher and you have internet connection.
System.Threading.ThreadHelper:ThreadStart()

with version unity 2018.4.14f1

 

I see this same warning on Unity Editor 2018.4.21f1

But I can build APK without any problem.

 

I am receiving this same warning when I go to build settings before a build. I believe it happens while it is trying to retrieve the API levels within the android build settings.

It ends up building, so that's good.

 

Same here, even trying 2018.4.28f1, sometimes API 29 & 30 can be detected, but sometimes not. You will need to quit/restart Unity dozens of times until API 29 can be detected.
And you are were NOT good, bcos API 28 (max) can be built, and it's fine for testing. But you won't be able to submit to Google Play, bcos API 29 is the minimal requiremet.

 

I believe 2019.4.13f1 has patched this issue "Android: Detect new format of SDK's command-line tools (1256617)", but why not retrofit to 2018.4.28f1?

 

I think I found a solution, worked for me.
In Player settings:
- Set minimum API level as required
- Set Target API level to Automatic (If your phone is connected)
---------------------------------------------------------------------
If still not working:
- Keep Player -> Other settings open in Editor
- Keep Editor focus on Player->Other settings
- Restart Unity

 

lol, I had the same problem while looking at this post. My problem was that I had different versions of the game. Let me explain: file → buildsettings → pleyersettings → version: 0.1
file → buildsettings → pleyersettings →othersettings →identification →version:0.0
I just put them the same and it worked for me. (I also connect my cell phone with the unityRemote 5 open, before building the APK, I don't know if it has anything to do with it). and think that I download all the API's in my android studio LMAO

 

it is another weird unity bug. i switched platfrom to ios and then switched back to android. yep it disappeared

 

Solved this issue myself.

In my case the cause of issue was different.

I've installed Android Studio and my Unity Editor uses the same SDK path as being used by Android Studio.

When I installed the latest Command Line Tools this error started appearing. After trying other possible solutions, when I uninstalled the latest command line tools and installed the previous version. The issue was fixed!

 

Solved for me,
below the minimum and target API Level, there is option API COMPATIBILITY LEVEL, change this option to .Netframework and then change it to back where it was.