nRF5 SDK 15 - Symbol could not be resolved

[benjamin.joa]

Hi,

I'm working with the nRF52 DK (PCA10040) with the latest versions of the toolchains, build tools and IDE (Eclipse Oxygen). I followed the tutorial "Development with GCC and Eclipse" and works like a charm, except for one thing: there are symbols that could not be resolved, like "LED_NUMBER" in the blinky example, but I can build and run without any problems. I know that this issue happened in the previous versions of the SDK (I'm using the 15th) and tried every solutions.

Thanks in advance for your responses.

Best regards.

[benjamin.joa]

I did resolve it doing right-click in the project->Index->Rebuild. The files that appear with a "X" just open to refresh it.