Why is the flutter app.release.apk not present?? It's not present in /outputs/flutterapk

You know how when we run the flutter app (using flutter run), after running, the app will stay on our device right? i think that’s because of the release-apk being installed. But in my case, when i stop running, and close the app, it’s not present in my phone at all.
When i go to app/outputs/flutterapks/ There’s only:

1. app-debug.apk
2. app-debug.apk.sha1

There should be app-release.apk too right? Its not present. What do i do?

This is what i get for running flutter build apk :

Font asset "CupertinoIcons.ttf" was tree-shaken, reducing it from 257628 to 836 bytes (99.7% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.
Font asset "MaterialIcons-Regular.otf" was tree-shaken, reducing it from 1645184 to 1716 bytes (99.9% reduction). Tree-shaking can be disabled by providing the --no-tree-shake-icons flag when building your app.
e: C:/Users/DELL/.gradle/caches/transforms-3/c683cde5b1f5377825fe27da54e1b718/transformed/fragment-1.7.1/jars/classes.jar!/META-INF/fragment_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/4b07bb875192e8c29c9b76677237c5c8/transformed/jetified-activity-1.8.1/jars/classes.jar!/META-INF/activity_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/455c428e62a6dd75da98c7152f7af462/transformed/jetified-lifecycle-livedata-core-ktx-2.7.0/jars/classes.jar!/META-INF/
lifecycle-livedata-core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/0313b4099446464f98d0df0606c58c95/transformed/lifecycle-livedata-2.7.0/jars/classes.jar!/META-INF/lifecycle-livedata_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.     
e: C:/Users/DELL/.gradle/caches/transforms-3/2e94595ca22e3aadcdebdc547820608c/transformed/lifecycle-viewmodel-2.7.0/jars/classes.jar!/META-INF/lifecycle-viewmodel_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.   
e: C:/Users/DELL/.gradle/caches/transforms-3/ce9e6112a0f9c5113844bb49506e7a06/transformed/lifecycle-livedata-core-2.7.0/jars/classes.jar!/META-INF/lifecycle-liv
edata-core_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/6e7c2231d2ac9b957ecfe9d432e59ed2/transformed/jetified-lifecycle-viewmodel-savedstate-2.7.0/jars/classes.jar!/META-I
NF/lifecycle-viewmodel-savedstate_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/740c93e8e1043856a6b7cb15a7eaa9f0/transformed/jetified-core-ktx-1.13.1/jars/classes.jar!/META-INF/core-ktx_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/fac84cd5ecf1ec88a8c98571217c9350/transformed/core-1.13.1/jars/classes.jar!/META-INF/core_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/98474e5913354eaede53aaa879a4dd8b/transformed/lifecycle-runtime-2.7.0/jars/classes.jar!/META-INF/lifecycle-runtime_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.       
e: C:/Users/DELL/.gradle/caches/transforms-3/d674cd90e13def17f77b3f8010d35e09/transformed/jetified-lifecycle-process-2.7.0/jars/classes.jar!/META-INF/lifecycle-
process_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/androidx.lifecycle/lifecycle-common/2.7.0/85334205d65cca70ed0109c3acbd29e22a2d9cb1/lifecycle-common-2.7.0.ja
r!/META-INF/lifecycle-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/5292c4072ce6d2ab49b0e25db445cdfe/transformed/jetified-window-java-1.2.0/jars/classes.jar!/META-INF/window-java_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/d47b1192960df52846144d82ac9e1d6f/transformed/jetified-window-1.2.0/jars/classes.jar!/META-INF/window_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlinx/kotlinx-coroutines-core-jvm/1.7.1/63a0779cf668e2a47d13fda7c3b0c4f8dc7762f4/kotlinx-cor
outines-core-jvm-1.7.1.jar!/META-INF/kotlinx-coroutines-core.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlinx/kotlinx-coroutines-android/1.7.1/c2d86b569f10b7fc7e28d3f50c0eed97897d77a7/kotlinx-coro
utines-android-1.7.1.jar!/META-INF/kotlinx-coroutines-android.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/transforms-3/aadceac8ee0316c01a9163bad1a5e0ed/transformed/jetified-savedstate-1.2.1/jars/classes.jar!/META-INF/savedstate_release.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!
/META-INF/kotlin-stdlib-jdk7.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!
/META-INF/kotlin-stdlib.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.8.22/636bf8b320e7627482771bbac9ed7246773c02bd/kotlin-stdlib-1.8.22.jar!
/META-INF/kotlin-stdlib-jdk8.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
e: C:/Users/DELL/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.8.22/1a8e3601703ae14bb58757ea6b2d8e8e5935a586/kotlin-stdlib-comm
on-1.8.22.jar!/META-INF/kotlin-stdlib-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.8.0, expected version is 1.6.0.
Running Gradle task 'assembleRelease'...                           88.0s

I want the release apk, How do i solve this?
Or is there something like, the release-apk will only be generated after running flutter build apk ??