Open BLYNK Sketch Code Builder

Hi Guys
I am new to this forum but am excited by the capabilities of Blynk.

I have had plenty of successes with Blynk but am mystified when using the DHT11 example with BLYNK Sketch Code Builder
When I compile it in Arduino I get the following error:

C:\Users\Frank office\Google Drive\Arduino\Sketchbook\Generated\sketch_oct07a\sketch_oct07a.ino: In function ‘void setup()’:

sketch_oct07a:94: error: ‘timer’ was not declared in this scope

_ timer.setInterval(1000L, sendSensor);_

_ ^_

C:\Users\Frank office\Google Drive\Arduino\Sketchbook\Generated\sketch_oct07a\sketch_oct07a.ino: In function ‘void loop()’:

sketch_oct07a:100: error: ‘timer’ was not declared in this scope

_ timer.run();_

_ ^_

exit status 1
‘BlynkTimer’ does not name a type

The problem is in BlynkTimer timer; and also occurs in all other the other examples in Open BLYNK Sketch Code Builder where BlynkTimer timer; occurs

I have no idea what is the problem and any suggestions would be really appreciated
Thank you
Maxy

I am guessing to are using old libraries. What are you using and did you install them manually as zip install will not work for Blynk.

Hello Costas,
Thank you for your prompt reply.
At this stage I am rather confused as I have tried many options.
Which libraries are you referring to and are you suggesting I download them and insert them manually in the library folder Zipped or UNziped?
F

Do you understand this https://github.com/blynkkk/blynk-library/releases/tag/v0.4.8