ESP32 Forum

The code compiles OK, but the Eclipse edit window has every ESP_LOGI() statement underlined in red, saying that it has invalid arguments.

Eg
static const char* TAG = "wt_comms";

ESP_LOGI(TAG, "Reconnecting to WiFi");




When you hover over it, the popup gives:
"Invalid arguments '
Candidates are:
void esp_log_write(enum {/wt_starter_esp_idf/components/arduino-esp32/tools/sdk/include/log/esp_log.h:822}, const char *, const char *, ...)
'"


All my includes appear to be OK. Everything else gets reported correctly.
It's just the ESP_LOG macros.

What am I missing?

If you use F3 to "go to" the source file represented by the "#include esp_log.h" line, does it go to the correct source file? Are that header file's recursive includes properly referenced?

Yes, it goes to esp-idf/components/log/include/esp_log.h

Are that header file's recursive includes properly referenced?

I think so. When I look at the includes they are not marked as being incorrect.

esp_log.h is found twice in my include path.
Once in esp-idf and once in arduino-esp32.
Is that likely the problem?

William

Once in esp-idf and once in arduino-esp32.
Is that likely the problem?

It might be because esp_log_level_t is an anonymous enum, and Eclipse builds an identifier for it out of file path:

enum {/wt_starter_esp_idf/components/arduino-esp32/tools/sdk/include/log/esp_log.h:822}

Hypothetically, changing enum declaration from

typedef enum { } esp_log_level_t;

to

typedef enum esp_log_level_t { } esp_log_level_t;

in both header files should fix the issue.

Thank you !!! That worked.

It now let's me see the other warnings that Eclipse has brought up.
All of them because of duplicate includes from components/arduino-esp32/tools/sdk/include

What is the standard way of ensuring that components/arduino-esp32/tools/sdk/include isn't picked up?

I have also raised this as an issue at arduino-esp32 https://github.com/espressif/arduino-esp32/issues/2426
As I suspect it needs to be fixed in the arduino-esp32/component.mk