tf2.LookupException: "map" passed to lookupTransform argument source_frame does not exist. [closed]

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I am having an issue where for some reason my system says map frame does not exist. Here is the code here:

#!/usr/bin/env python2.7
import rospy
from nav_msgs.msg import Odometry
import sklearn
import numpy as np
from rospy.numpy_msg import numpy_msg
import math
import tf2_ros
import geometry_msgs.msg
import tf2_geometry_msgs
from geometry_msgs.msg import Point, PointStamped



def transform_point(transformation, point_wrt_source):
    point_wrt_target = \
        tf2_geometry_msgs.do_transform_point(PointStamped(point=point_wrt_source),
            transformation).point
    return [point_wrt_target.x, point_wrt_target.y]


def get_transformation(source_frame, target_frame,
                       tf_cache_duration=0.5):
    tf_buffer = tf2_ros.Buffer(rospy.Duration(tf_cache_duration))
    tf2_ros.TransformListener(tf_buffer)

    # get the tf at first available time
    #try:
    transformation = tf_buffer.lookup_transform(target_frame,source_frame, rospy.Time(0), rospy.Duration(0.1))
    #except (tf2_ros.LookupException, tf2_ros.ConnectivityException,
     #       tf2_ros.ExtrapolationException):
      #  rospy.logerr('Unable to find the transformation from %s to %s'% source_frame, target_frame)
    return transformation


def main(c):
    # initialize ros node
    rospy.init_node('tf2_ros_example')

    # define source and target frame
    source_frame = 'map'
    target_frame = 'base_footprint'

    # define a source point
    point_wrt_source = Point(c[0],c[1], 0)

    transformation = get_transformation(source_frame, target_frame)
    point_wrt_target = transform_point(transformation, point_wrt_source)
    print(point_wrt_target[0])


if __name__ == '__main__':
    main([2,1.2])

This is the error:

 ...main
    transformation = get_transformation(source_frame, target_frame)
  File "/home/philip/server_prac/src/action_practice/src/tester.py", line 29, in get_transformation
    transformation = tf_buffer.lookup_transform(target_frame,source_frame, rospy.Time(0), rospy.Duration(0.1))
  File "/opt/ros/melodic/lib/python2.7/dist-packages/tf2_ros/buffer.py", line 87, in lookup_transform
    return self.lookup_transform_core(target_frame, source_frame, time)
tf2.LookupException: "map" passed to lookupTransform argument source_frame does not exist. 
Exception in thread /tf:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/opt/ros/melodic/lib/python2.7/dist-packages/rospy/impl/tcpros_pubsub.py", line 185, in robust_connect_subscriber
    conn.receive_loop(receive_cb)
  File "/opt/ros/melodic/lib/python2.7/dist-packages/rospy/impl/tcpros_base.py", line 846, in receive_loop
    self.close()
  File "/opt/ros/melodic/lib/python2.7/dist-packages/rospy/impl/tcpros_base.py", line 858, in close
    self.socket.close()
AttributeError: 'NoneType' object has no attribute 'close'

I have no clue why this is happening. I have tried other transformations like from "odom" to "base_scan" and the code worked completely fine.