Esp32-snippets: Compilation error when using cpp_utils

[SalvaPedraza]

I am using cpp_utils (under /components folder) in my ESP-IDF project.
But "make all" produce following error.
I found similar error on https://github.com/espressif/esp32-at/issues/48 and tried different xtensa-esp32-elf verssions, but all fails.
I am developing on Eclipse on Ubuntu 64bits.
What can I try?

make all
CXX GeneralUtils.o
In file included from /home/salva/esp/pool_sensor/components/cpp_utils/./GeneralUtils.cpp:16:0:
/home/salva/esp/pool_sensor/components/cpp_utils/FreeRTOS.h:46:3: error: 'pthread_mutex_t' does not name a type
pthread_mutex_t m_pthread_mutex;
^
/home/salva/esp/esp-idf/make/component_wrapper.mk:210: recipe for target 'GeneralUtils.o' failed
make[1]: * [GeneralUtils.o] Error 1
/home/salva/esp/esp-idf/make/project.mk:386: recipe for target 'cpp_utils-build' failed
make: * [cpp_utils-build] Error 2

[chegewara]

Try to make clean and the make all

Also try to make in cli
xtensa-esp32-elf-gcc -v

When did you last time update esp-idf and esp32-snippets?

[SalvaPedraza]

I updated to latest everything: esp-idf, xtensa-esp32-elf and esp32-snippets.
Now everithing worrks fine.
Thanks for your support

[nkolban]

Closing for just now. Re-open as needed.

[programmer131]

I'm using Arduino IDE and getting exactly same issue, just installed latest ble arduino library and also pulled latest esp32 arduino stack.

C:\Users\DELL\Documents\Arduino\libraries\ESP32_BLE_Arduino\src/FreeRTOS.h:46:3: error: 'pthread_mutex_t' does not name a type

pthread_mutex_t m_pthread_mutex;

[gerisse]

same issue too for me : with BLE_notify example, in esp 32 BLE Arduino . Thanks

[chegewara]

Hi,
have you updated arduino-esp32 and toolchain?
From Arduino\hardware\espressif\esp32\tools\xtensa-esp32-elf\bin folder use this command:
xtensa-esp32-elf-gcc.exe --version
latest version is:
xtensa-esp32-elf-gcc.exe (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0

[gerisse]

yes, i have the same : 5.2.0 (on Linux)

[chegewara]

crosstool-ng-1.22.0-80-g6c4433a5?

[gerisse]

yes : xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a) 5.2.0

[programmer131]

for me, problem resolved after i deleted esp32 arduino core and re-installed, I think issue was I copied esp32 platform from another pc.

[chegewara]

@gerisse your toolchain is fresh enough to work with pthreads, please try @programmer131 solution

[gerisse]

ok, i re-installed it, and all is ok, thanks :+1:

[vjkanth]

In file included from C:...\libraries\ESP32_BLE_Arduino-master\src/BLEDescriptor.h:16:0,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLECharacteristic.h:17,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLEServer.h:19,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLEDevice.h:18,

             from C:\arduino-1.8.5\sketches\BLE_server\BLE_server.ino:6:

C:...\libraries\ESP32_BLE_Arduino-master\src/FreeRTOS.h:46:3: error: 'pthread_mutex_t' does not name a type

pthread_mutex_t m_pthread_mutex;

^

In file included from C:...\libraries\ESP32_BLE_Arduino-master\src/BLECharacteristic.h:17:0,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLEServer.h:19,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLEDevice.h:18,

             from C:\arduino-1.8.5\sketches\BLE_server\BLE_server.ino:6:

C:...\libraries\ESP32_BLE_Arduino-master\src/BLEDescriptor.h:54:60: error: invalid conversion from 'int' to 'esp_gatt_perm_t' [-fpermissive]

esp_gatt_perm_t m_permissions = ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE;

                                                        ^

In file included from C:...\libraries\ESP32_BLE_Arduino-master\src/BLEServer.h:19:0,

             from C:\...\libraries\ESP32_BLE_Arduino-master\src/BLEDevice.h:18,

             from C:\arduino-1.8.5\sketches\BLE_server\BLE_server.ino:6:

C:...\libraries\ESP32_BLE_Arduino-master\src/BLECharacteristic.h:105:67: error: invalid conversion from 'int' to 'esp_gatt_perm_t' [-fpermissive]

esp_gatt_perm_t m_permissions = ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE;

                                                               ^

In file included from C:...\libraries\ESP32_BLE_Arduino-master\src/BLEDevice.h:20:0,

             from C:\arduino-1.8.5\sketches\BLE_server\BLE_server.ino:6:

C:...\libraries\ESP32_BLE_Arduino-master\src/BLEUtils.h:50:49: error: 'esp_gattc_service_elem_t' has not been declared

static std::string gattcServiceElementToString(esp_gattc_service_elem_t *pGATTCServiceElement);

                                             ^

Getting this when attempting to compile the BLE_Server sketch. Had to copy over files it couldn't find. Added a line "#define CONFIG_CXX_EXCEPTIONS 1" in the sdkconfig.h file. Have Windows 10, ESP32 over USB, ensured the toolchain version is at "xtensa-esp32-elf-gcc.exe (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0", nevertheless did another get to reconfirm. Restarted IDE etc... Still no joy. Tried a simpler sketch at "https://github.com/espressif/arduino-esp32/blob/master/libraries/SimpleBLE/examples/SimpleBleDevice/SimpleBleDevice.ino" and works perfectly, can see the chip on my Android phone. This one won't even compile. What else can I try please?

[chegewara]

https://github.com/nkolban/esp32-snippets/issues/220#issuecomment-375988331
Im guessing he meant to reinstall arduino