Flutter app not building on Linux. CMake Error at flutter/ephemeral/.plugin_symlinks/realm/linux/CMakeLists.txt:38 (file): file does not recognize sub-command REAL_PATH about realm-dart HOT 17 CLOSED

file(REAL_PATH ${APP_PUBSPEC_FILE} ABSOLUTE_PATH_APP_PUBSPEC_FILE)

get_filename_component(ABSOLUTE_PATH_APP_PUBSPEC_FILE ${APP_PUBSPEC_FILE} REALPATH)

get_filename_component(ABSOLUTE_PATH_APP_DIR ${APP_DIR} REALPATH)

execute_process(COMMAND "${FLUTTER_ROOT}/bin/dart" "run" "realm" "install" "--target-os-type" "linux" "--flavor" "flutter" #"--debug"
  WORKING_DIRECTORY ${ABSOLUTE_PATH_APP_DIR}
  OUTPUT_VARIABLE output
  RESULT_VARIABLE result
  # COMMAND_ERROR_IS_FATAL ANY
)

execute_process(
  COMMAND "${FLUTTER_ROOT}/bin/dart" "run" "realm" "metrics" "--verbose" "--flutter-root" "${FLUTTER_ROOT}/bin" "--target-os-type" "linux" "--target-os-version" "${CMAKE_HOST_SYSTEM_VERSION}" #"--pause-isolates-on-start" "--enable-vm-service"
  # COMMAND ${CMAKE_COMMAND} -E true
  WORKING_DIRECTORY ${ABSOLUTE_PATH_APP_DIR}
  OUTPUT_VARIABLE output
  RESULT_VARIABLE result
  # COMMAND_ERROR_IS_FATAL LAST
)

cmake_minimum_required(VERSION 3.10)

set(PROJECT_NAME "realm")
project(${PROJECT_NAME} LANGUAGES CXX)

# This value is used when generating builds using this plugin, so it must
# not be changed.
set(PLUGIN_NAME "realm_plugin")

add_library(${PLUGIN_NAME} SHARED "realm_plugin.cpp")

apply_standard_settings(${PLUGIN_NAME})

set_target_properties(${PLUGIN_NAME} PROPERTIES CXX_VISIBILITY_PRESET hidden)
target_compile_definitions(${PLUGIN_NAME} PRIVATE FLUTTER_PLUGIN_IMPL)

target_include_directories(${PLUGIN_NAME} INTERFACE "${CMAKE_CURRENT_SOURCE_DIR}/include")
target_link_libraries(${PLUGIN_NAME} PRIVATE flutter)
target_link_libraries(${PLUGIN_NAME} PRIVATE PkgConfig::GTK)

set(realm_bundled_libraries
  "${PROJECT_SOURCE_DIR}/binary/linux/librealm_dart.so"
  PARENT_SCOPE
)

# message ("CMAKE_BINARY_DIR is ${CMAKE_BINARY_DIR}")
# message ("PROJECT_SOURCE_DIR is ${PROJECT_SOURCE_DIR}")
# message ("CMAKE_CURRENT_SOURCE_DIR is ${CMAKE_CURRENT_SOURCE_DIR}")

# This works cause realm plugin is always accessed through the .plugin_symlinks directory.
set(EPHEMERAL_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../../../ephemeral")
include(${EPHEMERAL_DIR}/generated_config.cmake)

set(APP_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../../../../..")
# message ("APP_DIR is ${APP_DIR}")
get_filename_component(ABSOLUTE_PATH_APP_DIR ${APP_DIR} REALPATH)
# message ("ABSOLUTE_PATH_APP_DIR is ${ABSOLUTE_PATH_APP_DIR}")
set(APP_PUBSPEC_FILE "${APP_DIR}/pubspec.yaml")
# message ("APP_PUBSPEC_FILE is ${APP_PUBSPEC_FILE}")
# file(REAL_PATH ${APP_PUBSPEC_FILE} ABSOLUTE_PATH_APP_PUBSPEC_FILE)
get_filename_component(ABSOLUTE_PATH_APP_PUBSPEC_FILE ${APP_PUBSPEC_FILE} REALPATH)
# message ("ABSOLUTE_PATH_APP_PUBSPEC_FILE is ${ABSOLUTE_PATH_APP_PUBSPEC_FILE}")
file(READ "${ABSOLUTE_PATH_APP_PUBSPEC_FILE}" PUBSPEC_CONTENT)
string(REGEX MATCH "name:[ \r\n\t]*([a-z0-9_]*)" _ ${PUBSPEC_CONTENT})
# message ("Pubspec name 0 is ${CMAKE_MATCH_0}")
# message ("Package name is ${CMAKE_MATCH_1}")
set(BUNDLE_ID ${CMAKE_MATCH_1})

add_definitions(-DAPP_DIR_NAME="${APPLICATION_ID}")
add_definitions(-DBUNDLE_ID="${BUNDLE_ID}")


# message ("FLUTTER_TOOL_ENVIRONMENT is ${FLUTTER_TOOL_ENVIRONMENT}")
# message ("FLUTTER_ROOT is ${FLUTTER_ROOT}")

execute_process(COMMAND "${FLUTTER_ROOT}/bin/dart" "run" "realm" "install" "--target-os-type" "linux" "--flavor" "flutter" #"--debug"
  WORKING_DIRECTORY ${ABSOLUTE_PATH_APP_DIR}
  OUTPUT_VARIABLE output
  RESULT_VARIABLE result
  # COMMAND_ERROR_IS_FATAL ANY
)
message(STATUS "cmd output: ${output}")
message(STATUS "cmd result: ${result}")

# message("CMAKE_HOST_SYSTEM_VERSION ${CMAKE_HOST_SYSTEM_VERSION}")
execute_process(
  COMMAND "${FLUTTER_ROOT}/bin/dart" "run" "realm" "metrics" "--verbose" "--flutter-root" "${FLUTTER_ROOT}/bin" "--target-os-type" "linux" "--target-os-version" "${CMAKE_HOST_SYSTEM_VERSION}" #"--pause-isolates-on-start" "--enable-vm-service"
  # COMMAND ${CMAKE_COMMAND} -E true
  WORKING_DIRECTORY ${ABSOLUTE_PATH_APP_DIR}
  OUTPUT_VARIABLE output
  RESULT_VARIABLE result
  # COMMAND_ERROR_IS_FATAL LAST
)
message(STATUS "cmd output: ${output}")
message(STATUS "cmd result: ${result}")