Fatal errors wile trying to run application with firebase

[Ansaryg2]

I have installed firebase CLI and and I have run flutterfire configure and also added dependencies of firebase_core but when i try to run the app it shows me this BIG error

Launching lib\main.dart on SM G960N in debug mode...
main.dart:1
[Fatal Error] proguard-gradle-6.0.3.pom:2:1: Content is not allowed in prolog.
[Fatal Error] fastutil-7.2.0.pom:2:1: Content is not allowed in prolog.
[Fatal Error] httpcore-4.4.10.pom:2:1: Content is not allowed in prolog.
[Fatal Error] kotlin-reflect-1.3.50.pom:2:1: Content is not allowed in prolog.
[Fatal Error] antlr4-4.5.3.pom:2:1: Content is not allowed in prolog.
[Fatal Error] gson-2.8.5.pom:2:1: Content is not allowed in prolog.
[Fatal Error] oss-parent-7.pom:2:1: Content is not allowed in prolog.
[Fatal Error] kotlin-stdlib-1.3.50.pom:2:1: Content is not allowed in prolog.
2
[Fatal Error] oss-parent-7.pom:2:1: Content is not allowed in prolog.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':firebase_core'.
> Could not resolve all files for configuration ':firebase_core:classpath'.
   > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4
      > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
         > Could not parse POM https://repo.maven.apache.org/maven2/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.pom
            > Content is not allowed in prolog.
   > Could not resolve it.unimi.dsi:fastutil:7.2.0.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4
      > Could not resolve it.unimi.dsi:fastutil:7.2.0.
         > Could not parse POM https://repo.maven.apache.org/maven2/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.pom
            > Content is not allowed in prolog.
   > Could not resolve org.apache.httpcomponents:httpcore:4.4.10.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.analytics-library:crash:26.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4 > com.android.tools:sdklib:26.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.analytics-library:crash:26.5.4 > org.apache.httpcomponents:httpclient:4.5.6
      > Could not resolve org.apache.httpcomponents:httpcore:4.4.10.
         > Could not parse POM https://repo.maven.apache.org/maven2/org/apache/httpcomponents/httpcore/4.4.10/httpcore-4.4.10.pom
            > Content is not allowed in prolog.
   > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.50.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.lint:lint-gradle-api:26.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4 > com.android.tools:sdk-common:26.5.4
      > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.50.
         > Could not parse POM https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-reflect/1.3.50/kotlin-reflect-1.3.50.pom
            > Content is not allowed in prolog.
   > Could not resolve org.antlr:antlr4:4.5.3.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > androidx.databinding:databinding-compiler-common:3.5.4
      > Could not resolve org.antlr:antlr4:4.5.3.
         > Could not parse POM https://repo.maven.apache.org/maven2/org/antlr/antlr4/4.5.3/antlr4-4.5.3.pom
            > Content is not allowed in prolog.
   > Could not resolve com.squareup:javapoet:1.8.0.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > androidx.databinding:databinding-compiler-common:3.5.4
      > Could not resolve com.squareup:javapoet:1.8.0.
         > Could not parse POM C:\Users\malaa\.gradle\caches\modules-2\files-2.1\org.sonatype.oss\oss-parent\7\46b8a785b60a2767095b8611613b58577e96d4c9\oss-parent-7.pom
            > Content is not allowed in prolog.
   > Could not resolve com.google.code.gson:gson:2.8.5.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > androidx.databinding:databinding-compiler-common: 3.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4 > com.android.tools:sdklib:26.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4 > com.android.tools.build:manifest-merger:26.5.4
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:builder:3.5.4 > com.android.tools:sdk-common:26.5.4 > com.android.tools.analytics-library:shared:26.5.4
      > Could not resolve com.google.code.gson:gson:2.8.5.
         > Could not parse POM https://repo.maven.apache.org/maven2/com/google/code/gson/gson/2.8.5/gson-2.8.5.pom
            > Content is not allowed in prolog.
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.50.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.50
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.50 > org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.50
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.50.
         > Could not parse POM https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.50/kotlin-stdlib-1.3.50.pom
            > Content is not allowed in prolog.
   > Could not resolve com.google.auto.value:auto-value:1.5.2.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build:bundletool:0.9.0
      > Could not resolve com.google.auto.value:auto-value:1.5.2.
         > Could not parse POM https://repo.maven.apache.org/maven2/com/google/auto/value/auto-value/1.5.2/auto-value-1.5.2.pom
            > Could not resolve com.google.auto:auto-parent:3.
               > Could not resolve com.google.auto:auto-parent:3.
                  > Could not parse POM C:\Users\malaa\.gradle\caches\modules-2\files-2.1\org.sonatype.oss\oss-parent\7\46b8a785b60a2767095b8611613b58577e96d4c9\oss-parent-7.pom
                     > Content is not allowed in prolog.
   > Could not resolve com.google.code.gson:gson:2.8.5.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build.jetifier:jetifier-core:1.0.0-beta04
      > Could not resolve com.google.code.gson:gson:2.8.5.
         > Could not parse POM https://repo.maven.apache.org/maven2/com/google/code/gson/gson/2.8.5/gson-2.8.5.pom
            > Content is not allowed in prolog.
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.50.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build.jetifier:jetifier-core:1.0.0-beta04
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta04
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.50.
         > Could not parse POM https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.50/kotlin-stdlib-1.3.50.pom
            > Content is not allowed in prolog.
   > Could not resolve com.google.code.gson:gson:2.8.5.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.google.protobuf:protobuf-java-util:3.4.0
      > Could not resolve com.google.code.gson:gson:2.8.5.
         > Could not parse POM https://repo.maven.apache.org/maven2/com/google/code/gson/gson/2.8.5/gson-2.8.5.pom
            > Content is not allowed in prolog.
   > Could not resolve com.google.j2objc:j2objc-annotations:1.1.
     Required by:
         project :firebase_core > com.android.tools.build:gradle:3.5.4 > com.android.tools.analytics-library:crash:26.5.4 > com.google.guava:guava:27.0.1-jre
      > Could not resolve com.google.j2objc:j2objc-annotations:1.1.
         > Could not parse POM C:\Users\malaa\.gradle\caches\modules-2\files-2.1\org.sonatype.oss\oss-parent\7\46b8a785b60a2767095b8611613b58577e96d4c9\oss-parent-7.pom
            > Content is not allowed in prolog.
> Failed to notify project evaluation listener.
2
   > Could not get unknown property 'android' for project ':firebase_core' of type org.gradle.api.Project.

* 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 20s Exception: Gradle task assembleDebug failed with exit code 1 Exited (sigterm)