title: Issue with rendering template index.html
body: <p>I am working on Flask app that will get the data from my sqlite3 database and push it to the index.html. For some reason i am getting the error when I execute the code:</p>
  
  <pre><code>from flask import Flask, render_template, request
  app = Flask(__name__)
  import sqlite3
  # Retrieve data from database
  def getData():
      conn=sqlite3.connect('../Sensors.db')
      curs=conn.cursor()
      for row in curs.execute("SELECT * FROM BME_DATA ORDER BY TIME_STAMP DESC LIMIT 1"):
          Time = str(row[1])
          Temperature = row[2]
          Gas = row[3]
          Humidity = row[4]
          Pressure = row[5]
          Altitude = row[6]
  
      conn.close()
      return Time, Temperature, Gas, Humidity, Pressure, Altitude
  # main route 
  @app.route("/")
  def index():    
      Time, Temperature, Gas, Humidity, Pressure, Altitude = getData()
      templateData = {
          'Time': Time,
          'Temperature': Temperature,
          'Gas': Gas,
          'Humidity': Humidity,
          'Pressure': Pressure,
          'Altitude': Altitude
      }
      return render_template('index.html', **templateData)
  if __name__ == "__main__":
     app.run(debug=False)
  </code></pre>
  
  <p>The flask app is located ad BMEWebServer folder. And the structure I have looks like this:</p>
  
  <pre><code>BMEWebServer/appBMEWebServer.py
  BMEWebServer/templates/style.css
  BMEWebServer/static/index.html
  </code></pre>
  
  <p>The error I am getting is this:</p>
  
  <pre><code>    &gt;&gt;&gt; %Run appBMEWebServer.py
   * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
  [2019-03-01 01:45:32,774] ERROR in app: Exception on / [GET]
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/flask/app.py", line 1982, in wsgi_app
      response = self.full_dispatch_request()
    File "/usr/lib/python3/dist-packages/flask/app.py", line 1614, in full_dispatch_request
      rv = self.handle_user_exception(e)
    File "/usr/lib/python3/dist-packages/flask/app.py", line 1517, in handle_user_exception
      reraise(exc_type, exc_value, tb)
    File "/usr/lib/python3/dist-packages/flask/_compat.py", line 33, in reraise
      raise value
    File "/usr/lib/python3/dist-packages/flask/app.py", line 1612, in full_dispatch_request
      rv = self.dispatch_request()
    File "/usr/lib/python3/dist-packages/flask/app.py", line 1598, in dispatch_request
      return self.view_functions[rule.endpoint](**req.view_args)
    File "/home/pi/Desktop/Sensors_Database/BMEWebServer/appBMEWebServer.py", line 30, in index
      return render_template('static/index.html', **templateData)
    File "/usr/lib/python3/dist-packages/flask/templating.py", line 133, in render_template
      return _render(ctx.app.jinja_env.get_or_select_template(template_name_or_list),
    File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 851, in get_or_select_template
      return self.get_template(template_name_or_list, parent, globals)
    File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 812, in get_template
      return self._load_template(name, self.make_globals(globals))
    File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 774, in _load_template
      cache_key = self.loader.get_source(self, name)[1]
    File "/usr/lib/python3/dist-packages/flask/templating.py", line 57, in get_source
      return self._get_source_fast(environment, template)
    File "/usr/lib/python3/dist-packages/flask/templating.py", line 85, in _get_source_fast
      raise TemplateNotFound(template)
  jinja2.exceptions.TemplateNotFound: static/index.html
  127.0.0.1 - - [01/Mar/2019 01:45:32] "GET / HTTP/1.1" 500 -
  127.0.0.1 - - [01/Mar/2019 01:45:34] "GET /favicon.ico HTTP/1.1" 404 -
  </code></pre>
  
  <p>Any ideas what am I doing wrong here?</p>