I've installed FastLED via the Arduino libraries manager. I can compile the examples.

Electronics FastLED Archive
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#1

I’ve installed FastLED via the Arduino libraries manager. I can compile the examples.
I’m trying to compile https://github.com/Dany-Boy55/Addressable-WS2812-LED-controller and it does

#include <FastLED.h>
[…]
CRGBArray<NUM_LEDS> leds;

which produces the following error:

DIY_LEDSv1.7:14: error: ‘CRGBArray’ does not name a type
DIY_LEDSv1.7.ino: In function ‘void setup()’:
DIY_LEDSv1.7:21: error: ‘leds’ was not declared in this scope

[etc. etc.]

Now what?

#2

What version of Arduino and FastLED are you using?

Please post your code to http://gist.github.com and share the link to it here.

#3

Uh I linked to the code. Latest OR beta Arduino. Installed fastled from libraries manager as stated, so hopefully latest fastled?

#4

@Martin_Espinoza1 ​ it looks like the FastLed library isn’t installed.

Have you had anither version of arduino IDE installed in the past?

#5

I’ve had many versions of Arduino installed. But I can compile the FastLED examples, which show up in my menu…

#6

@Martin_Espinoza i followed the link to the github repo, clicked on the link for the arduino file, selected “raw” view, and copy/paste it into a new arduino window.
Ctrl+R and it compiled first time.

I’ve put the resulting .hex here https://gist.github.com/hsiboy/c21a2845f7645b5fd0033233df18ac5a its compiled against a board type of Uno.

#7

Maybe it’s an arduino problem, then. I double-checked to make sure I only have FastLED installed once…

#8

If Arduino has picked up fastled, then during the early stages of compile you will see a benign warning from fastled itself.

#9

You mean if it picks it up twice?

#10

@Martin_Espinoza1 ​ no, not twice. Fastled spits out some information during the very early stages of compile. Do you see that before the error?

#11

No, I do not.

#12

Ok. Then it sounds like arduino isnt pulling in the fastled library.

#13

Sounds that way. That’s disappointing (of Arduino) since I installed it through the fine library manager.

#14

@Martin_Espinoza I thought you said you could compile the FastLED examples though, so it must be finding the library.

#15

Well, that’s my thought too! FastLED’s examples show up in the menu, and I can compile them. Well, most of them? FirstLight builds. SmartMatrix doesn’t, gives a missing SmartMatrix.h. Hmm, that seems to be a theme with these examples. RGBCalibrate builds. There’s no unusual message before the build, though.

#16

Maybe try removing the library, download it directly from GitHub, unzip and rename to just FastLED. Restart IDE. ???
I don’t know. This is strange. You don’t have the library installed in two places by accident so you?

#17

I’ve looked a bunch of times to try to rule that out, and I can’t find another copy.

#18

I finally just blew away the release version of Arduino and am using the beta and I get the message from fastled, and am now on to other reasons the code won’t compile for me :smiley:

#19

Hmmm. Have you by chance ever installed a different version of gcc?

#20

I have mingw installed. Have the Arduino folks not figured out how paths work yet?