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Error when version upgrade in pubspec.yaml

Flutter,android
I can't understand.
Error has occured, when I upgrading version in 'pubspec.yaml'
version: 1.0.1+2 was no problem. build done!
but, 1.0.2+3, 1.0.3+4, .. ERROR!!!! build failed!!
even though 1.0.0+1.. error too..
What should I do?
no problem
error screenshot
error info is
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> java.lang.NullPointerException (no error message)
* 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 13s
Finished with error: Gradle task assembleDebug failed with exit code 1

What is the real fix for this issue while building apk release in ionic?

I've got an issue while building apk --release in ionic. Gradle daemon is installed.What is the real fix for this issue while building apk release in ionic ?
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processReleaseResources'.
> Android resource linking failed
23 actionable tasks: 1 executed, 22 up-to-date
C:\ES.eWarrant\eWarrant\platforms\android\app\src\main\res\xml\authenticator.xml:2: AAPT: error: resource mipmap/icon (aka io.ionic.starter:mipmap/icon) not found.
error: failed linking file resources.
* 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 10s
C:\ES.eWarrant\eWarrant\platforms\android\gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processReleaseResources'.
> Android resource linking failed
C:\ES.eWarrant\eWarrant\platforms\android\app\src\main\res\xml\authenticator.xml:2: AAPT: error: resource mipmap/icon (aka io.ionic.starter:mipmap/icon) not found.
error: failed linking file resources.
* 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 10s
[ERROR] An error occurred while running subprocess cordova.
cordova build android --release exited with exit code 1.

Ionic Build Android

I am trying to build an APK for android, and it keeps giving me the following error. I tried everything out there online and never worked. Please help.
BUILD FAILED
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ‘:transformClassesWithJarMergingForDebug’.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: org/apache/cordova/PermissionHelper.class
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Total time: 1 mins 51.939 secs
Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ‘:transformClassesWithJarMergingForDebug’.
com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: org/apache/cordova/PermissionHelper.class
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
[ERROR] An error occurred while running cordova build android (exit code 1).

Ionic Cordova Android build error

I'm trying to build an Android version of a "blank" project with IONIC, now i'm stuck with this error. Has anyone experienced this before, and what would your answer be?
FAILED
BUILD FAILED
Total time: 2.179 secs
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':CordovaLib:processDebugResources'.
com.android.ide.common.process.ProcessException: Failed to execute aapt
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':CordovaLib:processDebugResources'.
com.android.ide.common.process.ProcessException: Failed to execute aapt
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
[ERROR] An error occurred while running cordova build android (exit code 1).

The way i solved this problem is as below:
npm uninstall cordova ionic
npm install -g cordova#7.0.0 ionic#3.19.0
cordova platform rm android
cordova platform add android

Ionic build failed

I have been having this problem for a while now and i tried all the solutions on the internet but none of them helped.
I have this error whenever I run : Ionic run android:
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':processDebugResources'.
com.android.ide.common.process.ProcessException: org.gradle.process.internal.E
xecException: Process 'command 'C:\Users\hamiri\AppData\Local\Android\sdk\build-
tools\23.0.3\aapt.exe'' finished with non-zero exit value 1
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug
option to get more log output.
When running gradlew.bat --info build clean:
FAILURE: Build failed with an exception.
Where:
Script 'D:\HomeTest\platforms\android\CordovaLib\cordova.gradle' line: 117
What went wrong:
A problem occurred evaluating root project 'android'.
Unable to determine Android SDK directory.
I made sure to verify tools\23.0.3\aapt.exe is there.
Anybody can help me fix this?