Compilation error: exit status 1

jayden1987 · December 27, 2024, 11:54am

Hey all,

I am trying to upload my first sketch, No luck.
I feel like this is a library error? I have added a few different DHT11 libraries to no avail.

Any assistance would be greatly appreciated.

The Arduino board I am using is: ELEGOO MEGA2560 R3.

I followed this guide:

Getting this error:
In file included from /Users/Documents/Arduino/libraries/DHT_sensor_library/DHT_U.cpp:15:0:
/Users/Documents/Arduino/libraries/DHT_sensor_library/DHT_U.h:36:10: fatal error: Adafruit_Sensor.h: No such file or directory
 #include <Adafruit_Sensor.h>
          ^~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1

b707 · December 27, 2024, 12:25pm

Did you read the error message?

it is a perfectly clear - your installation doesn't include a required library Adafruit_Sensor

jayden1987 · December 27, 2024, 1:14pm

In the interest of being somewhat constructive, I have already added the below Adafruit librarys.
If someone could point me towards the correct library, It would be greatly appreciated.

Mod edit:
Inappropriate comment removed

sonofcy · December 27, 2024, 1:30pm

Since you didn't post all your code in code tags (as pointed out in the pinned post 'How to get the most from this forum' it is impossible to be more helpfull.

jayden1987 · December 27, 2024, 1:32pm

So, as soon as I tried to install that one, It has prompted me that it is already installed & to override the existing.

/Users/Documents/Arduino/libraries/DHT_sensor_library/examples/DHT_Unified_Sensor/DHT_Unified_Sensor.ino:10:45: error: missing terminating > character
 #include <Liquidcrystal lcd (12,11,5,4,3,2);
                                             ^
/Users/Documents/Arduino/libraries/DHT_sensor_library/examples/DHT_Unified_Sensor/DHT_Unified_Sensor.ino:10:10: fatal error: Liquidcrystal lcd (12,11,5,4,3,2);: No such file or directory
 #include <Liquidcrystal lcd (12,11,5,4,3,2);
          ^
compilation terminated.
exit status 1

Compilation error: missing terminating > character

jayden1987 · December 27, 2024, 1:39pm

Hey there,

Sorry, I haven't seen that post yet. I've only started using the Arduino today. Literally only a few hours & this forum even less. Still getting upto speed. I look out for that post, Thanks.

I think you wanted the original code? Not the error?

#include <LiquidCrystal.h>
#include "DHT.h"
#define DHTPin 8
LiquidCrystal lcd(12,11,5,4,3,2);
DHT dht;</liquidcrystal.h></p><p>void setup()
{
  dht.setup(DHTPin); 
  lcd.begin(16,2);
}
void loop()
{
  float temp = dht.getTemperature();
 float humi = dht.getHumidity();
 lcd.setCursor(0,0);
 lcd.print("Temp: ");
 lcd.print(temp);
 lcd.print(" C");
 lcd.setCursor(0,1);
 lcd.print("Humi: ");
 lcd.print(humi);
 lcd.print(" %");
 delay(2000);
}</p>

sonofcy · December 27, 2024, 1:48pm

Your code is messed up, lot's of invalid chars, misplaced statements. I will clean it up and try to compile.
Still something wrong with DHT, I am not a C++ guy so can't help with this

cherk · December 27, 2024, 1:50pm

jayden1987:

#include <LiquidCrystal.h>
#include "DHT.h"
#define DHTPin 8
LiquidCrystal lcd(12,11,5,4,3,2);
DHT dht;   ///</liquidcrystal.h></p><p>  ?? 

void setup()
{
  dht.setup(DHTPin); 
  lcd.begin(16,2);
}
void loop()
{
  float temp = dht.getTemperature();
 float humi = dht.getHumidity();
 lcd.setCursor(0,0);
 lcd.print("Temp: ");
 lcd.print(temp);
 lcd.print(" C");
 lcd.setCursor(0,1);
 lcd.print("Humi: ");
 lcd.print(humi);
 lcd.print(" %");
 delay(2000);
}             //</p> ??

extraneous crap from WHERE !

jayden1987 · December 27, 2024, 1:52pm

Thanks a ton, Much appreciated.
I will compare your version against mine and see where it went wrong.

Just FYI, I copy / pasted this from the instructables website, This was Step 3 of the guide I followed.

sonofcy · December 27, 2024, 1:54pm

Have you fixed the first error you posted as #1?

cherk · December 27, 2024, 1:57pm

OH ! it 's must be right , its on the web !
I suggest you start with the library examples and work from there !
Good luck and all the best wishes for a happy NewYear !

jayden1987 · December 27, 2024, 2:03pm

Unfortunately not.

When I reinstalled the Library Cherk mentioned, I am getting even more errors.
At this point, I am wondering if I should just delete / re-install everything?

I'm heading to bed now, Will check in again later. Appreciate your help.

/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:5:5: error: no matching function for call to 'DHT::DHT()'
 DHT dht;</liquidcrystal.h></p><p>void setup()
     ^~~
In file included from /private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:2:0:
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:65:3: note: candidate: DHT::DHT(uint8_t, uint8_t, uint8_t)
   DHT(uint8_t pin, uint8_t type, uint8_t count = 6);
   ^~~
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:65:3: note:   candidate expects 3 arguments, 0 provided
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:63:7: note: candidate: constexpr DHT::DHT(const DHT&)
 class DHT {
       ^~~
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:63:7: note:   candidate expects 1 argument, 0 provided
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:63:7: note: candidate: constexpr DHT::DHT(DHT&&)
/Users/Documents/Arduino/libraries/DHT_kxn/DHT.h:63:7: note:   candidate expects 1 argument, 0 provided
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:5:9: error: expected unqualified-id before '<' token
 DHT dht;</liquidcrystal.h></p><p>void setup()
         ^
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino: In function 'void loop()':
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:12:20: error: 'class DHT' has no member named 'getTemperature'; did you mean 'readTemperature'?
   float temp = dht.getTemperature();
                    ^~~~~~~~~~~~~~
                    readTemperature
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:13:19: error: 'class DHT' has no member named 'getHumidity'; did you mean 'readHumidity'?
  float humi = dht.getHumidity();
                   ^~~~~~~~~~~
                   readHumidity
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino: At global scope:
/private/var/folders/cq/mwsy0lxj79bdfh1zqpw7hjgr0000gn/T/.arduinoIDE-unsaved20241128-8422-rfodz.q9mj1q/sketch_dec28a/sketch_dec28a.ino:23:2: error: expected unqualified-id before '<' token
 }</p>
  ^
Multiple libraries were found for "DHT.h"
  Used: /Users/Documents/Arduino/libraries/DHT_kxn
  Not used: /Users/Documents/Arduino/libraries/DHT_sensor_library
Multiple libraries were found for "LiquidCrystal.h"
  Used: /Users/Documents/Arduino/libraries/LiquidCrystal
  Not used: /Users/Library/Arduino15/libraries/LiquidCrystal
exit status 1

Compilation error: no matching function for call to 'DHT::DHT()'

sonofcy · December 27, 2024, 2:08pm

That is the first error. The code was badly copied and pasted, fix all of those errors then fix the DHT constructor, then install the DHT library correctly. Now compile.

sonofcy · December 27, 2024, 2:11pm

No need to re-install, won't change anything. Fix problem noted in post #1, and #5, fix problem noted in post #9

b707 · December 27, 2024, 2:14pm

Because you didn't fix a lot of typos, mentioned by @sonofcy in post #9

jayden1987 · December 27, 2024, 2:34pm

Thanks for that. It seems to copy / paste that way on every occasion. Now I know what to lookout for.

Still more work to be done, will continue tomorrow.

Once again, I appreciate your help. Very constructive.

Coding_Badly · December 27, 2024, 2:34pm

I see there's been some childish name calling. If that's not removed, ideally with an apology, by the time I return to the forum, the guilty will be spending some time away from the forum.

PerryBebbington · December 27, 2024, 2:42pm

Two moderators with time to spare because it's the Christmas holidays is not a good time for name calling on the forum. 2 of you have got 2 day suspensions. Please keep it polite when you return.

I thank you.

xfpd · December 27, 2024, 5:50pm

HTML - things like <p> and <\p>

system · June 25, 2025, 5:51pm

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.

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Compilation error: exit status 1

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