Compiling issues: Error code included

FredOlivas · March 24, 2016, 4:51pm

Hello all. Don’t see that anyone else has said issues. I’m speaking of Compilation issues. I can’t compile any SmartMatrix code. Nothing and I don’t know why. Here is a error sample:

Arduino: 1.6.7 (Windows 10), TD: 1.27, Board: "Teensy 3.2 / 3.1, Serial, 96 MHz optimized (overclock), US English"

WARNING: Category '' in library Scheduler is not valid. Setting to 'Uncategorized'
WARNING: Category '' in library Temboo is not valid. Setting to 'Uncategorized'
WARNING: Category '' in library USBHost is not valid. Setting to 'Uncategorized'
In file included from C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral\FunkyCloudsSpiral.ino:11:0:
C:\Users\Fred\Desktop\Electronics Fun\Arduino\hardware\teensy\avr\libraries\FastLED/FastLED.h:12:2: warning: #warning FastLED version 3001000 (Not really a warning, just telling you here.) [-Wcpp]
#warning FastLED version 3001000  (Not really a warning, just telling you here.)
^
C:\Users\Fred\AppData\Local\Temp\builda088532a1b74d50782b99f3c1064f391.tmp\sketch\FunkyCloudsSpiral.ino.cpp.o: In function `setup':
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:63: undefined reference to `SmartMatrix::begin()'
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:66: undefined reference to `SmartMatrix::setBrightness(unsigned char)'
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:67: undefined reference to `SmartMatrix::setColorCorrection(colorCorrectionModes)'
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:70: undefined reference to `SmartMatrix::fillScreen(rgb24 const&)'
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:71: undefined reference to `SmartMatrix::swapBuffers(bool)'
C:\Users\Fred\AppData\Local\Temp\builda088532a1b74d50782b99f3c1064f391.tmp\sketch\FunkyCloudsSpiral.ino.cpp.o: In function `loop':
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:231: undefined reference to `SmartMatrix::backBuffer()'
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:259: undefined reference to `SmartMatrix::swapBuffers(bool)'
C:\Users\Fred\AppData\Local\Temp\builda088532a1b74d50782b99f3c1064f391.tmp\sketch\FunkyCloudsSpiral.ino.cpp.o: In function `__static_initialization_and_destruction_0':
C:\Users\Fred\Desktop\Electronics Fun\Sketches\FunkyCloudsSpiral/FunkyCloudsSpiral.ino:30: undefined reference to `SmartMatrix::SmartMatrix()'
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling.

  This report would have more information with
  "Show verbose output during compilation"
  enabled in File > Preferences.

Any ideas what I’m doing wrong?
Thank you in advance.

Louis · March 24, 2016, 5:49pm

Hi Fred,

You can paste code or error reports using the “Preformatted text” tool and it will be much easier to read. It’s na icon that looks like this </>. I edited your post to add the formatting

Do any of the examples that are included with SmartMatrix work?

Can you paste the entire app that you’re trying to compile here?

If the app was make for the old version of the SmartMatrix Library, it needs to be updated to work with SmartMatrix 3. See the Migration doc for details:

github.com

pixelmatix/SmartMatrix/blob/master/MIGRATION.md

# Migrating from SmartMatrix 3.x to SmartMatrix 4.0
There are some minor changes needed to migrate a SmartMatrix 3.x sketch to SmartMatrix 4.0:

- Change `#include <SmartMatrix3.h>` to `#include <SmartMatrix.h>` or alternately change to `#include <SmartMatrix4.h>`

The way you select your hardware type has changed:

- If you're using a bare Teensy 3 (no latch circuit), or SmartMatrix Shield V1-V3, now you need to add `#include <MatrixHardware_Teensy3_ShieldV1toV3.h>` before `#include <SmartMatrix.h>`
- If you're using a SmartLED Shield for Teensy 3 (V4), or you added an external latch circuit, you need to add `#include <MatrixHardware_Teensy3_ShieldV4.h>` before `#include <SmartMatrix.h>`
- If you see `#include <SmartLEDShieldV4.h>` at the top of your sketch, remove that and replace with `#include <MatrixHardware_Teensy3_ShieldV4.h>`
- If you had to modify SmartMatrix Library to customize pinout or other hardware changes, you may be able to make those changes with a custom MatrixHardware header file inside your sketch now.  Copy the MatrixHardware header file closest to your custom hardware from the library /src/ folder, give it a custom name inside your sketch folder and include it before `#include <SmartMatrix.h>`

SmartMatrix Library 3.x and 4.x can coexist in the Arduino Libraries Folder:

- Add the two libraries in unique folders, e.g. "SmartMatrix3" and "SmartMatrix4" (you'll need to download from GitHub and not use Arduino Library Manager for at least one of the libraries)
- Use `#include <SmartMatrix3.h>` to include SmartMatrix 3.x in your sketch, and `#include <SmartMatrix.h>` or or `#include <SmartMatrix4.h>` to include SmartMatrix 4.x in your sketch

# Migrating from SmartMatrix 2.x to SmartMatrix 3.0
SmartMatrix 3.0 has separated out the single SmartMatrix class into a core class for refreshing the display, and separate layer classes for storing data.  The library is not backwards compatible with sketches created for SmartMatrix 2.x, but by following this document it should be relatively easy to update your sketches to get access to the new features.  You can have SmartMatrix3 installed in parallel with an existing SmartMatrix_32x32 or SmartMatrix_16x32 library without conflicts.

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jblang · April 2, 2016, 4:46pm

There are issues compiling Aurora in Arduino 1.6.7, so this could be the same thing. Try Arduino 1.6.5… that is the newest version I have confirmed working.

Update: maybe I’m behind the times, it looks like Louis fixed the issues with 1.6.7 a few days ago, but make sure you have the fixed version of SmartMatrix.

Louis · April 19, 2016, 6:15pm

There’s a new release with Arduino 1.6.8 compatibility: