Cannot build my aplication

I keep getting the same error and have not found any solutions online, now i can't build the aplication for test.

Error 1:
Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details

> Configure project :launcher
WARNING: The option setting 'android.enableR8=true' is deprecated.
It will be removed in version 5.0 of the Android Gradle plugin.
You will no longer be able to disable R8

UnityEngine.GUIUtilityrocessEvent (int,intptr,bool&)

Error 2:

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\Israel\Dragon Flight\Temp\gradleOut\unityLibrary\build.gradle' line: 99

* What went wrong:
A problem occurred evaluating project ':unityLibrary'.

> No signature of method: java.lang.String.positive() is applicable for argument types: () values: []
Possible solutions: notify(), tokenize(), size(), size()

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2m 4s
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8

UnityEngine.GUIUtilityrocessEvent (int,intptr,bool&)


Error 3:
Error displaying dialog: The current process has used all of its system allowance of handles for Window Manager objects.

UnityEngine.GUIUtilityrocessEvent (int,intptr,bool&)


Error 4:
CommandInvokationFailure: Gradle build failed.
C:\Program Files\Java\jdk1.8.0_202\bin\java.exe -classpath "C:\Program Files\Unity\Hub\Editor\2021.1.28f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-6.1.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"

stderr[

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\Israel\Dragon Flight\Temp\gradleOut\unityLibrary\build.gradle' line: 99

* What went wrong:
A problem occurred evaluating project ':unityLibrary'.
> No signature of method: java.lang.String.positive() is applicable for argument types: () values: []
Possible solutions: notify(), tokenize(), size(), size()

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2m 4s
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8
]
stdout[
Starting a Gradle Daemon, 1 incompatible Daemon could not be reused, use --status for details

> Configure project :launcher
WARNING: The option setting 'android.enableR8=true' is deprecated.
It will be removed in version 5.0 of the Android Gradle plugin.
You will no longer be able to disable R8
]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <04b7ada17ece4f3da2133228ef06844e>:0)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <04b7ada17ece4f3da2133228ef06844e>:0)
Rethrow as BuildFailedException: Exception of type 'UnityEditor.Build.BuildFailedException' was thrown.
UnityEditor.Android.PostProcessor.CancelPostProcess.AbortBuild (System.String title, System.String message, System.Exception ex) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.PostProcessAndroidPlayer.PostProcess (UnityEditor.BuildTarget target, System.String stagingAreaData, System.String stagingArea, System.String playerPackage, System.String installPath, System.String companyName, System.String productName, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <04b7ada17ece4f3da2133228ef06844e>:0)
UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <5a3f0fb386cb4cc1809e4d066057cf15>:0)
UnityEngine.GUIUtilityrocessEvent(Int32, IntPtr, Boolean&)

 

First find if you can build a blank project. If you can't then go fix your Unity and/or Android SDK/NDK / Java installation.

If you can build the empty, then start bisecting between your a blank project and your full project until you find what is stopping you.

 

I will try

 

I realized the error is happening after i added the firebase sdk and the google play games plugin.

 

Your best approach to fixing build issues is to do them one at a time, it normally throws out multiple errors into the log for 1 issue.

A quick google for your R8 problem has some solutions: https://answers.unity.com/questions/1846144/how-to-remove-androidenabler8-from-the-project.html

I had the same issue when I added firebase/google play plugin & it was gradle related.