What m i missing

Using Arduino Project Guidance
1 
if (client.connected())
    {
      Serial.println("connected");
      client.println(str);
      client.println("Host:192.168.11.1");
      client.println();
      client.stop();

      ch1.wh = 0;                                                 //reset wh
       ch2.wh = 0;
     }
    else
    {
     Serial.println("connection failed");
  }
}

if((millis() - previousMillis_temp) > (temp_postrate) )
{
previousMillis_temp=millis();

error: expected unqualified-id before 'if'
Error compiling.

2

An "a" and a "I" and the rest of your code.

Mark

3

aryan_htd:
error: expected unqualified-id before 'if'

So the error is before the if and you didn't post that part so we cannot help you.

retry by posting the complete code (see the posting guidelines)

4

aryan_htd:

if (client.connected())

{
      Serial.println("connected");
      client.println(str);
      client.println("Host:192.168.11.1");
      client.println();
      client.stop();

ch1.wh = 0;                                                //reset wh
      ch2.wh = 0;
    }
    else
    {
    Serial.println("connection failed");
  }
}

if((millis() - previousMillis_temp) > (temp_postrate) )
{
previousMillis_temp=millis();




error: expected unqualified-id before 'if'
Error compiling.

My "best guess" given the minimal amount of code that you supplied ...

if (client.connected())
    {
      Serial.println("connected");
      client.println(str);
      client.println("Host:192.168.11.1");
      client.println();
      client.stop();

      ch1.wh = 0;                                                 //reset wh
       ch2.wh = 0;
     }
    else
    {
     Serial.println("connection failed");
  }
} < < < POSSIBLY AN EXTRA CURLY BRACE HERE ? ? ? 

if((millis() - previousMillis_temp) > (temp_postrate) )
{
previousMillis_temp=millis();