How do I troubleshoot compile erros

Getting Started
1

Hi there

I am trying to move from Arduino to Spark and am trying to troubleshoot the beginnings of my project.

I am not trying to get people to troubleshoot my project, just trying to understand the output of the web IDE… the Arduino IDE used to tell me which line the error was in, but this doesn’t (obviously) to me.

Also, is the Button library pre-installed?

Here is a sample output

In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from DallasTemperature.h:1,
from DallasTemperature.cpp:10:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning: #warning "Defaulting to Release Build" [-Wcpp]
In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from OneWire.h:1,
from OneWire.cpp:126:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning: #warning "Defaulting to Release Build" [-Wcpp]
In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from digoleGeo.h:23,
from digoleGeo.cpp:5:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning: #warning "Defaulting to Release Build" [-Wcpp]
In file included from digoleGeo.cpp:5:0:
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const String&)':
digoleGeo.h:146:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const char*)':
digoleGeo.h:152:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(char)':
digoleGeo.h:158:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(unsigned char, int)':
digoleGeo.h:164:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(int, int)':
digoleGeo.h:170:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(unsigned int, int)':
digoleGeo.h:176:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(long int, int)':
digoleGeo.h:182:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(long unsigned int, int)':
digoleGeo.h:188:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(double, int)':
digoleGeo.h:194:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const Printable&)':
digoleGeo.h:200:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println()':
digoleGeo.h:204:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const String&)':
digoleGeo.h:210:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const char*)':
digoleGeo.h:215:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(char)':
digoleGeo.h:220:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(unsigned char, int)':
digoleGeo.h:225:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(int, int)':
digoleGeo.h:230:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(unsigned int, int)':
digoleGeo.h:235:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(long int, int)':
digoleGeo.h:240:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(long unsigned int, int)':
digoleGeo.h:245:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(double, int)':
digoleGeo.h:250:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const Printable&)':
digoleGeo.h:255:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.cpp: In member function 'void DigoleSerialDisp::drawRoundRect(int, int, int, int)':
digoleGeo.cpp:270:6: warning: unused variable 'tmp' [-Wunused-variable]
digoleGeo.cpp: In member function 'void DigoleSerialDisp::fillRoundRect(int, int, int, int)':
digoleGeo.cpp:294:6: warning: unused variable 'tmp' [-Wunused-variable]
In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from displaytemp.cpp:3:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning: #warning "Defaulting to Release Build" [-Wcpp]
In file included from displaytemp.cpp:4:0:
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const String&)':
digoleGeo.h:146:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const char*)':
digoleGeo.h:152:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(char)':
digoleGeo.h:158:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(unsigned char, int)':
digoleGeo.h:164:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(int, int)':
digoleGeo.h:170:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(unsigned int, int)':
digoleGeo.h:176:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(long int, int)':
digoleGeo.h:182:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(long unsigned int, int)':
digoleGeo.h:188:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(double, int)':
digoleGeo.h:194:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println(const Printable&)':
digoleGeo.h:200:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::println()':
digoleGeo.h:204:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const String&)':
digoleGeo.h:210:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const char*)':
digoleGeo.h:215:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(char)':
digoleGeo.h:220:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(unsigned char, int)':
digoleGeo.h:225:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(int, int)':
digoleGeo.h:230:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(unsigned int, int)':
digoleGeo.h:235:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(long int, int)':
digoleGeo.h:240:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(long unsigned int, int)':
digoleGeo.h:245:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(double, int)':
digoleGeo.h:250:5: warning: no return statement in function returning non-void [-Wreturn-type]
digoleGeo.h: In member function 'size_t DigoleSerialDisp::print(const Printable&)':
digoleGeo.h:255:5: warning: no return statement in function returning non-void [-Wreturn-type]
displaytemp.cpp: At global scope:
displaytemp.cpp:9:27: error: no matching function for call to 'DigoleSerialDisp::DigoleSerialDisp(int)'
displaytemp.cpp:9:27: note: candidates are:
In file included from displaytemp.cpp:4:0:
digoleGeo.h:36:7: note: DigoleSerialDisp::DigoleSerialDisp()
digoleGeo.h:36:7: note: candidate expects 0 arguments, 1 provided
digoleGeo.h:36:7: note: constexpr DigoleSerialDisp::DigoleSerialDisp(const DigoleSerialDisp&)
digoleGeo.h:36:7: note: no known conversion for argument 1 from 'int' to 'const DigoleSerialDisp&'
displaytemp.cpp:9:18: error: cannot declare variable 'mydisp' to be of abstract type 'DigoleSerialDisp'
In file included from displaytemp.cpp:4:0:
digoleGeo.h:36:7: note: because the following virtual functions are pure within 'DigoleSerialDisp':
In file included from ../inc/spark_wiring_stream.h:38:0,
from ../inc/spark_wiring.h:35,
from ../inc/application.h:31,
from displaytemp.cpp:3:
../inc/spark_wiring_print.h:59:20: note: virtual size_t Print::write(uint8_t)
displaytemp.cpp: In function 'void setup()':
displaytemp.cpp:34:10: error: 'class DigoleSerialDisp' has no member named 'begin'
displaytemp.cpp:45:2: error: 'Button' was not declared in this scope
displaytemp.cpp:45:9: error: expected ';' before 'btnSet'
make: *** [displaytemp.o] Error 1

And there is my code (there are also the included libraries). This code was working then I have done some additions and cant get it working (and I can’t remember what the changes were!!)

#include "OneWire.h"
#include "DallasTemperature.h"
#include "digoleGeo.h"



#define _Digole_Serial_SPI_ //set OLED to use SPI
DigoleSerialDisp mydisp(SS);  //setup OLED display


#define TEMPINTERVAL 500 //sampling frequency for tempsensor
float temperature = 0;
unsigned long lastTempRequest = 0;
OneWire oneWire(D3); //set Temp sensor pin
DallasTemperature sensor(&oneWire);
DeviceAddress tempDeviceAddress;
char temperatureStr[10];

#define pin_A D0
#define pin_B D1
#define BTN_SET D2

//enum programmode {
//	menumode,
//	cooking,
//	startup,
//	probedetected,
//	noprobe,
//};
//programmode mode = startup;

void setup() {
  mydisp.begin();
  sensor.begin();
  	sensor.getAddress(tempDeviceAddress, 0);
	sensor.setResolution(tempDeviceAddress, 12);
	sensor.setWaitForConversion(false);
	sensor.requestTemperatures();
	lastTempRequest = millis();
	Spark.variable("temperature", &temperatureStr, STRING);
	
	pinMode(pin_A, INPUT);
	pinMode(pin_B, INPUT);
	Button btnSet = Button(BTN_SET, define_resistor);
    //digitalWrite(pin_A, HIGH); //are these lines needed?
    //digitalWrite(pin_B, HIGH);
}


 
void loop() {
    if (millis() - lastTempRequest >= TEMPINTERVAL)
        {
	    sensor.requestTemperatures();
		temperature = sensor.getTempCByIndex(0);
		lastTempRequest = millis();
		sprintf(temperatureStr,"%.2f",temperature);
        mydisp.clearScreen();
        mydisp.setRot180();
        mydisp.setPrintPos(1, 3);
        mydisp.setFont(123);
        mydisp.disableCursor();
        mydisp.print(temperature, 1);
        }

    
}
2

You have a lot of warnings and a few errors:

This says, in the fuction setup, on line 34 at column 10 of the file displaytemp.cpp, the class DigoleSerialDisp has no member function (also called a method) called begin.

The class called "Button" is not built-in and you have not included any files for it that's on line 45 column 2.

etc.

2 Likes
3

So all the lines before the four lines you quote were just ‘warnings’. I gave up before I got to the bottom those four lines you quote should be quite easy to work out!

I seem to remember getting loads of similar warnings previously if there was a stupid error e.g. leaving out a } at the end of the loop.

4

The above line needed to go above the #include "digoleGeo.h"

Now it compiles (if I delete the lines that reference Button.... is this ported yet?).

Do all those warnings matter do you think (it doesn't mention them now)

Thanks

1 Like
5

The warnings can matter in that they are “noise” you could get out of your process if you wanted to, but they don’t effect the result. So you can leave them or track them down. The gcc version for Spark is set to be a lot more strict than the compiler for Arduino, so lots of Arduino libraries have warnings that the programmers didn’t notice.

In the webIDE you only see warnings if there are also errors today, but that could change in the future.

I don’t think Button has been ported but it doesn’t look too bad and might work out of the box if you don’t use the internal pull-up resistors which you set in a slightly different way on Spark.

1 Like