ModuleNotFoundError: No module named 'headermap_tool'

[Tilak1028-st]

I'm getting this error:
ModuleNotFoundError: No module named 'headermap_tool'

while running this command:
bazel build //Vendor/BigInt:BigInt

Here's my BUILD file:

load("@build_bazel_rules_swift//swift:swift.bzl", "swift_library")
load(
  "//Vendor/rules_pods/BazelExtensions:extensions.bzl",
  "acknowledged_target",
  "gen_module_map",
  "gen_includes",
  "headermap",
  "umbrella_header"
)

# Config settings for different Apple platforms and release mode
config_setting(
  name = "release",
  values = {
    "compilation_mode": "opt",
  }
)

config_setting(
  name = "osxCase",
  values = {
    "apple_platform_type": "macos",
  }
)

config_setting(
  name = "tvosCase",
  values = {
    "apple_platform_type": "tvos",
  }
)

config_setting(
  name = "watchosCase",
  values = {
    "apple_platform_type": "watchos",
  }
)

# Filegroup for BigInt headers
filegroup(
  name = "BigInt_package_hdrs",
  srcs = [
    "BigInt_direct_hdrs",
  ],
  visibility = [
    "//visibility:public",
  ],
)

filegroup(
  name = "BigInt_direct_hdrs",
  srcs = glob(
    [
      "pod_support/Headers/Public/**/*",
    ]
  ),
  visibility = [
    "//visibility:public",
  ],
)

filegroup(
  name = "BigInt_public_hdrs",
  srcs = [],
  visibility = [
    "//visibility:public",
  ],
)

filegroup(
  name = "BigInt_hdrs",
  srcs = glob(
    [
      "pod_support/Headers/Public/**/*",
    ]
  ),
  visibility = [
    "//visibility:public",
  ],
)

# Headermap for BigInt
headermap(
  name = "BigInt_hmap",
  namespace = "BigInt",
  hdrs = [
    "BigInt_package_hdrs",
    ":BigInt_hdrs",
  ],
  deps = [],
  visibility = [
    "//visibility:public",
  ],
)

# Swift library for BigInt
swift_library(
  name = "BigInt",
  srcs = glob([
    "BigInt-5.4.1/Sources/**/*.swift",  # Path to your Swift source files
  ]),
  module_name = "BigInt",  # Define the module name
  copts = select({
    "//conditions:default": [
      "-DDEBUG=1",
      "-DPOD_CONFIGURATION_DEBUG=1",
    ],
    ":release": [
      "-DPOD_CONFIGURATION_RELEASE=1",
      "-DNS_BLOCK_ASSERTIONS=1",
    ],
  }) + [
    "-Xcc", "-fmodules",  # Enable modules
    "-Xcc", "-fmodule-name=BigInt",  # Set the module name
  ],
  deps = [
    ":BigInt_hmap",  # Include the headermap dependency
  ],
 
  visibility = [
    "//visibility:public",
  ],
)

# Acknowledged target for BigInt
acknowledged_target(
  name = "BigInt_acknowledgement",
  deps = [],
  value = "//Vendor/BigInt/pod_support_buildable:acknowledgement_fragment",
)