ios – – ERROR | [OSX] unknown: Encountered an unknown error (Unsupported file type: ) during validation

Hey guys I am using cocoapods in my kotlin multiplatform project. I am trying to do private pod spec from the doc. When I am trying to push the code I am getting weried issue on my terminal

Validating spec
 -> VivekMyCocoaPod (0.0.1)
    - WARN  | license: Invalid license type.
    - NOTE  | url: The URL (https://github.com/vivek-modi/KotlinPod.git) is not reachable.
    - WARN  | http: The URL (``) doesn't use the encrypted HTTPS protocol. It is crucial for Pods to be transferred over a secure protocol to protect your users from man-in-the-middle attacks. This will be an error in future releases. Please update the URL to use https.
    - ERROR | [OSX] unknown: Encountered an unknown error (Unsupported file type: ) during validation.

.podspec

Pod::Spec.new do |spec|
    spec.name="VivekMyCocoaPod"
    spec.version                  = '0.0.1'
    spec.homepage="https://github.com/vivek-modi/KotlinPod.git"
    spec.source                   = { :http=> ''}
    spec.authors=""
    spec.license=""
    spec.summary                  = 'Some description for a Kotlin/Native module'
    spec.vendored_frameworks="build/cocoapods/framework/MyFramework.framework"
    spec.libraries="c++"
                
                
                
    spec.pod_target_xcconfig = {
        'KOTLIN_PROJECT_PATH' => ':',
        'PRODUCT_MODULE_NAME' => 'MyFramework',
    }
                
    spec.script_phases = [
        {
            :name => 'Build VivekMyCocoaPod',
            :execution_position => :before_compile,
            :shell_path => '/bin/sh',
            :script => <<-SCRIPT
                if [ "YES" = "$COCOAPODS_SKIP_KOTLIN_BUILD" ]; then
                  echo "Skipping Gradle build task invocation due to COCOAPODS_SKIP_KOTLIN_BUILD environment variable set to \"YES\""
                  exit 0
                fi
                set -ev
                REPO_ROOT="$PODS_TARGET_SRCROOT"
                "$REPO_ROOT/../../../../private/var/folders/bh/nx_31y193190m5vz8sd9y6jm0000gq/T/wrap1922loc/gradlew" -p "$REPO_ROOT" $KOTLIN_PROJECT_PATH:syncFramework \
                    -Pkotlin.native.cocoapods.platform=$PLATFORM_NAME \
                    -Pkotlin.native.cocoapods.archs="$ARCHS" \
                    -Pkotlin.native.cocoapods.configuration="$CONFIGURATION"
            SCRIPT
        }
    ]
                
end