Gradle prewarm failed in 2018.3

I'm trying to move to 2018.3 from 2018.2 and cannot get android batch mode build working (ios and webgl work fine). Here's the error I see in the log:

Did anyone encounter this problem?

 

Having similar issue when trying to build to Android:

 

I just ran into this error when I switched from "Export Project" to a regular Android build, and the error went away after I did these two things:

- Upgraded to the latest version of Android Studio (3.2.1)
- Upgraded to Gradle 4.6 when it prompted me to

I suspect that updating Gradle is what solved the issue. Now I'm able to build directly from Unity again.

 

@binarynate: Thanks for the response. My Android Studio and its plugins all claim to be up to date, but I'm still having the issue.

@Yury-Habets: I'll keep checking in, thanks.

 

For me, upgrading to the latest Android SDK fixed the issue.

 

I got the same issue when I updated to unity 2018.3.2f1. fixed it by just updating Android sdk when it prompted me to

 

This issue is still there in Unity 2018.3.3f1 where you mentioned that you had fixed this in your release notes.
https://forum.unity.com/threads/gradle-prewarm-failed-in-unity-2018-3-3f1.620206/

 

Me too facing the same issue.Iam having asset bundles in my project.Android SDK is already updated to latest.Unity Version is 2018.3.3f1

 

The only errors that I got were this:

Code (CSharp):

1. CommandWithNoStdoutInvokationFailure: Gradle prewarm failed.
2. UnityEditor.Android.Command.RunWithShellExecute (System.String command, System.String args, System.String workingdir, System.String errorMsg) (at <492d67763d4d482e8616a9848b18ccab>:0)
3. UnityEditor.Android.AndroidJavaTools.RunJavaWithShellExecute (System.String args, System.String workingdir, System.String error) (at <492d67763d4d482e8616a9848b18ccab>:0)
4. UnityEditor.Android.GradleWrapper.WarmupGradle (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String baseCommand) (at <492d67763d4d482e8616a9848b18ccab>:0)
5. UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <492d67763d4d482e8616a9848b18ccab>:0)
6. UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <492d67763d4d482e8616a9848b18ccab>:0)
7. UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <492d67763d4d482e8616a9848b18ccab>:0)
8. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

I have explained this issue in this post: https://forum.unity.com/threads/gradle-prewarm-failed-in-unity-2018-3-3f1.620206/

Can you please check this. Because of this issue, our project is too late now.

 

Hi, currently there's still an issue with the prewarm error not giving any meaningful information. We've got a fix for that and it should be coming to 18.3 soon.

This error is the result of a gradle build failure. You should still be able to get the actual error by either using 18.2 or by exporting as a gradle project and trying to build it with android studio. Fixing the underlying error should make the prewarm error disappear.

 

Just want to note that though using 18.2 is mentioned as workaround, my problem appeared just after I moved to 18.3 and with 18.2 everything works just fine.

 

Does the problem happen with batchmode builds only or does it affect regular android builds as well? Could you please send us a bug report with a project that can be used recreate the issue?

 

Had the same problem, turns out it was my mainTemplate.gradle (custom gradle file) which needed updating. It appears Unity does not automatically do this. Instead I had to follow this very simple guide:
https://forum.unity.com/threads/uni...th-gradle-and-googleaidl.546478/#post-3917137

 

Hi,

I've upgraded my project to 2018.3.4f1 and trying to build my game with IL2CPP for the first time, but keep getting the gradle prewarm error. I'm running the latest version of SDK and build tools and the OpenJDK and NDK r16b.

There isn't much in the way of useful output that I can see - it doesn't mean much to me:

Spoiler

Code (csharp):

1.  
2. Build completed with a result of 'Failed'
3. 0x0000000141415828 (Unity) StackWalker::GetCurrentCallstack
4. 0x000000014141BCD6 (Unity) StackWalker::ShowCallstack
5. 0x00000001412FF55B (Unity) GetStacktrace
6. 0x00000001401432FE (Unity) DebugStringToFile
7. 0x0000000141786EED (Unity) DebugLogHandler_CUSTOM_Internal_Log
8. 0x0000000054CC5760 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,string,UnityEngine.Object)
9. 0x0000000054CC5633 (Mono JIT Code) [DebugLogHandler.cs:10] UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
10. 0x0000000054CC4EB5 (Mono JIT Code) [Logger.cs:48] UnityEngine.Logger:Log (UnityEngine.LogType,object)
11. 0x0000000012512FE9 (Mono JIT Code) [Debug.bindings.cs:117] UnityEngine.Debug:LogError (object)
12. 0x00000000484E8343 (Mono JIT Code) [BuildPlayerWindowBuildMethods.cs:190] UnityEditor.BuildPlayerWindow/DefaultBuildMethods:BuildPlayer (UnityEditor.BuildPlayerOptions)
13. 0x000000001135F14B (Mono JIT Code) [BuildPlayerWindowBuildMethods.cs:97] UnityEditor.BuildPlayerWindow:CallBuildMethods (bool,UnityEditor.BuildOptions)
14. 0x00000000111FB353 (Mono JIT Code) [BuildPlayerWindow.cs:908] UnityEditor.BuildPlayerWindow:GUIBuildButtons (UnityEditor.Modules.IBuildWindowExtension,bool,bool,bool,UnityEditor.Build.BuildPlatform)
15. 0x00000000111AA28B (Mono JIT Code) [BuildPlayerWindow.cs:809] UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
16. 0x0000000011189B5B (Mono JIT Code) [BuildPlayerWindow.cs:411] UnityEditor.BuildPlayerWindow:OnGUI ()
17. 0x00000000413170C0 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
18. 0x00007FF8CBCCBE4B (mono-2.0-bdwgc) [mini-runtime.c:2809] mono_jit_runtime_invoke
19. 0x00007FF8CBC51E32 (mono-2.0-bdwgc) [object.c:2919] do_runtime_invoke
20. 0x00007FF8CBC5B012 (mono-2.0-bdwgc) [object.c:3071] mono_runtime_invoke_checked
21. 0x00007FF8CBC5B7A9 (mono-2.0-bdwgc) [object.c:5262] mono_runtime_try_invoke_array
22. 0x00007FF8CBC5AFA6 (mono-2.0-bdwgc) [object.c:5140] mono_runtime_invoke_array_checked
23. 0x00007FF8CBBFFED4 (mono-2.0-bdwgc) [icall.c:3358] ves_icall_InternalInvoke
24. 0x0000000043AEDBD6 (Mono JIT Code) (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
25. 0x0000000043AEC1DB (Mono JIT Code) System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
26. 0x000000003FFC922F (Mono JIT Code) System.Reflection.MethodBase:Invoke (object,object[])
27. 0x0000000048047FB3 (Mono JIT Code) [HostView.cs:342] UnityEditor.HostView:Invoke (string,object)
28. 0x0000000048047E13 (Mono JIT Code) [HostView.cs:337] UnityEditor.HostView:Invoke (string)
29. 0x00000000111886D3 (Mono JIT Code) [HostView.cs:130] UnityEditor.HostView:OldOnGUI ()
30. 0x0000000048628B0C (Mono JIT Code) [IMGUIContainer.cs:244] UnityEngine.Experimental.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool)
31. 0x0000000048626EBB (Mono JIT Code) [IMGUIContainer.cs:440] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect)
32. 0x0000000011E76943 (Mono JIT Code) [IMGUIContainer.cs:421] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event)
33. 0x000000004803E6FB (Mono JIT Code) [IMGUIContainer.cs:401] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleEvent (UnityEngine.Experimental.UIElements.EventBase)
34. 0x000000004801AC94 (Mono JIT Code) [EventDispatcher.cs:516] UnityEngine.Experimental.UIElements.EventDispatcher:ProcessEvent (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.IPanel)
35. 0x00000000480140EB (Mono JIT Code) [EventDispatcher.cs:308] UnityEngine.Experimental.UIElements.EventDispatcher:Dispatch (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.IPanel,UnityEngine.Experimental.UIElements.DispatchMode)
36. 0x0000000048013BB3 (Mono JIT Code) [Panel.cs:177] UnityEngine.Experimental.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.DispatchMode)
37. 0x00000000485FA2C3 (Mono JIT Code) [UIElementsUtility.cs:248] UnityEngine.Experimental.UIElements.UIElementsUtility:DoDispatch (UnityEngine.Experimental.UIElements.BaseVisualElementPanel)
38. 0x00000000485F9A2B (Mono JIT Code) [UIElementsUtility.cs:68] UnityEngine.Experimental.UIElements.UIElementsUtility:ProcessEvent (int,intptr)
39. 0x00000000485F9394 (Mono JIT Code) [GUIUtility.cs:179] UnityEngine.GUIUtility:ProcessEvent (int,intptr)
40. 0x00000000485F95B3 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_bool_int_intptr (object,intptr,intptr,intptr)
41. 0x00007FF8CBCCBE4B (mono-2.0-bdwgc) [mini-runtime.c:2809] mono_jit_runtime_invoke
42. 0x00007FF8CBC51E32 (mono-2.0-bdwgc) [object.c:2919] do_runtime_invoke
43. 0x00007FF8CBC5AE3F (mono-2.0-bdwgc) [object.c:2966] mono_runtime_invoke
44. 0x0000000140C02AAA (Unity) scripting_method_invoke
45. 0x0000000140BF30BA (Unity) ScriptingInvocation::Invoke
46. 0x0000000140BED11A (Unity) ScriptingInvocation::Invoke<bool>
47. 0x000000014042E70C (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
48. 0x000000014129116C (Unity) GUIView::ProcessRetainedMode
49. 0x000000014147A5E0 (Unity) GUIView::OnInputEvent
50. 0x000000014129107C (Unity) GUIView::ProcessInputEvent
51. 0x000000014147BC7C (Unity) GUIView::ProcessEventMessages
52. 0x0000000141471B0F (Unity) GUIView::GUIViewWndProc
53. 0x00007FF91F3D6D41 (USER32) CallWindowProcW
54. 0x00007FF91F3D6713 (USER32) DispatchMessageW
55. 0x000000014149836F (Unity) MainMessageLoop
56. 0x0000000141499E66 (Unity) WinMain
57. 0x000000014247DE8A (Unity) __scrt_common_main_seh
58. 0x00007FF91DDE3034 (KERNEL32) BaseThreadInitThunk
59. 0x00007FF920483691 (ntdll) RtlUserThreadStart
60.  
61. (Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)
62.  
63. UnityEditor.BuildPlayerWindow+BuildMethodException: 2 errors
64.   at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x00234] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:190
65.   at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x0007f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:96
66. 0x0000000141415828 (Unity) StackWalker::GetCurrentCallstack
67. 0x000000014141BCD6 (Unity) StackWalker::ShowCallstack
68. 0x00000001412FF55B (Unity) GetStacktrace
69. 0x00000001401432FE (Unity) DebugStringToFile
70. 0x0000000141786EED (Unity) DebugLogHandler_CUSTOM_Internal_Log
71. 0x0000000054CC5760 (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,string,UnityEngine.Object)
72. 0x0000000054CC5633 (Mono JIT Code) [DebugLogHandler.cs:10] UnityEngine.DebugLogHandler:LogFormat (UnityEngine.LogType,UnityEngine.Object,string,object[])
73. 0x0000000054CC4EB5 (Mono JIT Code) [Logger.cs:48] UnityEngine.Logger:Log (UnityEngine.LogType,object)
74. 0x0000000012512FE9 (Mono JIT Code) [Debug.bindings.cs:117] UnityEngine.Debug:LogError (object)
75. 0x000000001135F2CB (Mono JIT Code) [BuildPlayerWindowBuildMethods.cs:102] UnityEditor.BuildPlayerWindow:CallBuildMethods (bool,UnityEditor.BuildOptions)
76. 0x00000000111FB353 (Mono JIT Code) [BuildPlayerWindow.cs:908] UnityEditor.BuildPlayerWindow:GUIBuildButtons (UnityEditor.Modules.IBuildWindowExtension,bool,bool,bool,UnityEditor.Build.BuildPlatform)
77. 0x00000000111AA28B (Mono JIT Code) [BuildPlayerWindow.cs:809] UnityEditor.BuildPlayerWindow:ShowBuildTargetSettings ()
78. 0x0000000011189B5B (Mono JIT Code) [BuildPlayerWindow.cs:411] UnityEditor.BuildPlayerWindow:OnGUI ()
79. 0x00000000413170C0 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
80. 0x00007FF8CBCCBE4B (mono-2.0-bdwgc) [mini-runtime.c:2809] mono_jit_runtime_invoke
81. 0x00007FF8CBC51E32 (mono-2.0-bdwgc) [object.c:2919] do_runtime_invoke
82. 0x00007FF8CBC5B012 (mono-2.0-bdwgc) [object.c:3071] mono_runtime_invoke_checked
83. 0x00007FF8CBC5B7A9 (mono-2.0-bdwgc) [object.c:5262] mono_runtime_try_invoke_array
84. 0x00007FF8CBC5AFA6 (mono-2.0-bdwgc) [object.c:5140] mono_runtime_invoke_array_checked
85. 0x00007FF8CBBFFED4 (mono-2.0-bdwgc) [icall.c:3358] ves_icall_InternalInvoke
86. 0x0000000043AEDBD6 (Mono JIT Code) (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
87. 0x0000000043AEC1DB (Mono JIT Code) System.Reflection.MonoMethod:Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo)
88. 0x000000003FFC922F (Mono JIT Code) System.Reflection.MethodBase:Invoke (object,object[])
89. 0x0000000048047FB3 (Mono JIT Code) [HostView.cs:342] UnityEditor.HostView:Invoke (string,object)
90. 0x0000000048047E13 (Mono JIT Code) [HostView.cs:337] UnityEditor.HostView:Invoke (string)
91. 0x00000000111886D3 (Mono JIT Code) [HostView.cs:130] UnityEditor.HostView:OldOnGUI ()
92. 0x0000000048628B0C (Mono JIT Code) [IMGUIContainer.cs:244] UnityEngine.Experimental.UIElements.IMGUIContainer:DoOnGUI (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect,bool)
93. 0x0000000048626EBB (Mono JIT Code) [IMGUIContainer.cs:440] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event,UnityEngine.Matrix4x4,UnityEngine.Rect)
94. 0x0000000011E76943 (Mono JIT Code) [IMGUIContainer.cs:421] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleIMGUIEvent (UnityEngine.Event)
95. 0x000000004803E6FB (Mono JIT Code) [IMGUIContainer.cs:401] UnityEngine.Experimental.UIElements.IMGUIContainer:HandleEvent (UnityEngine.Experimental.UIElements.EventBase)
96. 0x000000004801AC94 (Mono JIT Code) [EventDispatcher.cs:516] UnityEngine.Experimental.UIElements.EventDispatcher:ProcessEvent (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.IPanel)
97. 0x00000000480140EB (Mono JIT Code) [EventDispatcher.cs:308] UnityEngine.Experimental.UIElements.EventDispatcher:Dispatch (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.IPanel,UnityEngine.Experimental.UIElements.DispatchMode)
98. 0x0000000048013BB3 (Mono JIT Code) [Panel.cs:177] UnityEngine.Experimental.UIElements.BaseVisualElementPanel:SendEvent (UnityEngine.Experimental.UIElements.EventBase,UnityEngine.Experimental.UIElements.DispatchMode)
99. 0x00000000485FA2C3 (Mono JIT Code) [UIElementsUtility.cs:248] UnityEngine.Experimental.UIElements.UIElementsUtility:DoDispatch (UnityEngine.Experimental.UIElements.BaseVisualElementPanel)
100. 0x00000000485F9A2B (Mono JIT Code) [UIElementsUtility.cs:68] UnityEngine.Experimental.UIElements.UIElementsUtility:ProcessEvent (int,intptr)
101. 0x00000000485F9394 (Mono JIT Code) [GUIUtility.cs:179] UnityEngine.GUIUtility:ProcessEvent (int,intptr)
102. 0x00000000485F95B3 (Mono JIT Code) (wrapper runtime-invoke) <Module>:runtime_invoke_bool_int_intptr (object,intptr,intptr,intptr)
103. 0x00007FF8CBCCBE4B (mono-2.0-bdwgc) [mini-runtime.c:2809] mono_jit_runtime_invoke
104. 0x00007FF8CBC51E32 (mono-2.0-bdwgc) [object.c:2919] do_runtime_invoke
105. 0x00007FF8CBC5AE3F (mono-2.0-bdwgc) [object.c:2966] mono_runtime_invoke
106. 0x0000000140C02AAA (Unity) scripting_method_invoke
107. 0x0000000140BF30BA (Unity) ScriptingInvocation::Invoke
108. 0x0000000140BED11A (Unity) ScriptingInvocation::Invoke<bool>
109. 0x000000014042E70C (Unity) Scripting::UnityEngine::GUIUtilityProxy::ProcessEvent
110. 0x000000014129116C (Unity) GUIView::ProcessRetainedMode
111. 0x000000014147A5E0 (Unity) GUIView::OnInputEvent
112. 0x000000014129107C (Unity) GUIView::ProcessInputEvent
113. 0x000000014147BC7C (Unity) GUIView::ProcessEventMessages
114. 0x0000000141471B0F (Unity) GUIView::GUIViewWndProc
115. 0x00007FF91F3D6D41 (USER32) CallWindowProcW
116. 0x00007FF91F3D6713 (USER32) DispatchMessageW
117. 0x000000014149836F (Unity) MainMessageLoop
118. 0x0000000141499E66 (Unity) WinMain
119. 0x000000014247DE8A (Unity) __scrt_common_main_seh
120. 0x00007FF91DDE3034 (KERNEL32) BaseThreadInitThunk
121. 0x00007FF920483691 (ntdll) RtlUserThreadStart
122.  
123. (Filename: C:\buildslave\unity\build\Runtime/Export/Debug.bindings.h Line: 45)
124.  

I'm using the built in gradle file and a custom proguard as follows:

Spoiler

Code (csharp):

1.  
2. # For communication with AdColony's WebView
3. -keepclassmembers class * {
4.     @android.webkit.JavascriptInterface <methods>;
5. }
6. # Keep ADCNative class members unobfuscated
7. -keepclassmembers class com.adcolony.sdk.ADCNative** {
8.     *;
9.  }
10.  
11.  
12. -keepattributes SourceFile,LineNumberTable
13. -keep class com.inmobi.** { *; }
14. -dontwarn com.inmobi.**
15. -keep public class com.google.android.gms.**
16. -dontwarn com.google.android.gms.**
17. -dontwarn com.squareup.picasso.**
18. -keep class com.google.android.gms.ads.identifier.AdvertisingIdClient{
19.      public *;
20. }
21. -keep class com.google.android.gms.ads.identifier.AdvertisingIdClient$Info{
22.      public *;
23. }
24. # skip the Picasso library classes
25. -keep class com.squareup.picasso.** {*;}
26. -dontwarn com.squareup.picasso.**
27. -dontwarn com.squareup.okhttp.**
28. # skip Moat classes
29. -keep class com.moat.** {*;}
30. -dontwarn com.moat.**
31. # skip AVID classes
32. -keep class com.integralads.avid.library.* {*;}
33.  
34. #Unity
35. # Keep filenames and line numbers for stack traces
36. -keepattributes SourceFile,LineNumberTable
37. # Keep JavascriptInterface for WebView bridge
38. -keepattributes JavascriptInterface
39. # Sometimes keepattributes is not enough to keep annotations
40. -keep class android.webkit.JavascriptInterface {
41.    *;
42. }
43. # Keep all classes in Unity Ads package
44. -keep class com.unity3d.ads.** {
45.    *;
46. }
47. # Keep all classes in Unity Services package
48. -keep class com.unity3d.services.** {
49.    *;
50. }
51. -dontwarn com.google.ar.core.**
52. -dontwarn com.unity3d.services.**
53. -dontwarn com.ironsource.adapters.unityads.**
54.  
55.  
56. # Vungle
57. -keep class com.vungle.warren.** { *; }
58. -dontwarn com.vungle.warren.error.VungleError$ErrorCode
59. # Moat SDK
60. -keep class com.moat.** { *; }
61. -dontwarn com.moat.**
62. # Okio
63. -dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
64. # Retrofit
65. -dontwarn okio.**
66. -dontwarn retrofit2.Platform$Java8
67. # Gson
68. -keepattributes Signature
69. -keepattributes *Annotation*
70. -dontwarn sun.misc.**
71. -keep class com.google.gson.examples.android.model.** { *; }
72. -keep class * implements com.google.gson.TypeAdapterFactory
73. -keep class * implements com.google.gson.JsonSerializer
74. -keep class * implements com.google.gson.JsonDeserializer
75. # Google Android Advertising ID
76. -keep class com.google.android.gms.internal.** { *; }
77. -dontwarn com.google.android.gms.ads.identifier.**
78.  
79. # UTNotifications Proguard Config (please do not edit)
80. -keep public class universal.tools.notifications.* { *; }
81. -dontwarn com.amazon.device.messaging.*
82. -dontwarn universal.tools.notifications.AdmIntentService
83.  

I've tried several different ways of making this work - examples of the mainTemplate.gradle I've found surrounding this issue, but nothing seems to fix it on my local machine.

To note - it does build if I use Mono rather than IL2CPP and it appears to also work on Cloud Build - just not locally

Thanks in advanced

Alan

 

Upgraded sdk to 3.2.1 Unity 2018 3.3
but still:

Code (CSharp):

1. UnityEditor.BuildPlayerWindow+BuildMethodException: 2 errors
2.   at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (BuildPlayerOptions options) [0x00234] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:190
3.   at UnityEditor.BuildPlayerWindow.CallBuildMethods (Boolean askForBuildLocation, BuildOptions defaultBuildOptions) [0x0007f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:96
4. UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
5.  

 

Solved !! (Unity 2018.3.3)
After Updating Android Studio To Latest Version

 

You need to include more of your log before we can help you. The lines you included are just the summary.

Most likely you still have a custom gradle template which refers to the older sdk?

 

I managed to fix mine by reinstalling the latest build tools. I removed 28.0.3 and let Unity install it again and then it started working for me... very odd!

 

How did you get Unity to reinstall SDK for you?

 

Just updating everything didn't solve it for me. However, after doing the following steps inside the Build Settings I didn't get the "Gradle prewarm failed" message again and the deployment was successful:

1. Set "Build System" to "Internal (deprecated)" and deployed successfully to my Android phone
2. Set "Build System" back to "Gradle" and surprisingly deployed successfully to my Android phone again

The build with "Gradle" as Build System in step 2 took a bit longer as apparently Unity was downloading something in the background (and fixing everything automatically). After this, further deployments were quick and worked like a charm.

 

When I removed version 28.0.3 of the build tools using Android Studio and tried to build using Unity 2018.3.4, it prompted me at the start of the build to update my tools, so I let it happen. This seemed to fix it then

 

Solved by downgrading Build tools version from 29.0.0-rc1 to 28.0.2

 

I have same error when i tried to import appcoinspurchasing plugin in the project.Please help me

 

I have same error but removing mainTemplate.gradle file solved the issue.When i import appcoinspurchasing plugin maintemplate.gradle is created and gradle prewarm error reappears.Please help me

 

I struggled and struggled with this issue and this is what finally helped solve the error for me

 

I have fixed this ,please contact us (https://www.upltv.com/) or use this dod https://www.upltv.com/doc/dashboard...6%8E%A5%E5%85%A5%E5%B8%AE%E5%8A%A9&lang=zh-CN

 

How are your best people getting on with this, it's now October and using 2018.4.10 it's still happening.

Tried everything above and nothing worked for me.

 

This thread has the errors I'm seeing

https://forum.unity.com/threads/bui...-breaks-features-like-ar.754325/#post-5026457

 

Try to update android studio, it worked for me

 

Sadly I can't compile direct from Unity so I have no choice. I've had to go back to using the internal system and just building apks

 

Try to update android studio,and make sure that all FileName of the Unity project path is named in English.

 

Yup updated android studio several times, and yes 100% English names.

 

I am having the same problem the project was running smooth before then I opened another project which occurs the problem but now the same problem is happening in all projects which were running smooth and error free previously. Please give me some solutions I have tried all the possible things mentioned in the blog. Thank you.