Compilation errors on esphome 2026.1.0

[atax112]

Hello, encountered following compilation issues with latest esphome version.

Compiling .pioenvs/bedroomac/src/esphome/components/select/select.cpp.o
src/esphome/components/panasonic_ac/esppac_cnt.cpp: In member function 'virtual void esphome::panasonic_ac::CNT::PanasonicACCNT::control(const esphome::climate::ClimateCall&)':
src/esphome/components/panasonic_ac/esppac_cnt.cpp:251:39: error: cannot convert 'esphome::StringRef' to 'const char*'
  251 |     if (strcmp(this->get_custom_preset(), "Normal") != 0) {
      |                ~~~~~~~~~~~~~~~~~~~~~~~^~
      |                                       |
      |                                       esphome::StringRef
In file included from /data/cache/platformio/packages/toolchain-xtensa-esp-elf/xtensa-esp-elf/include/c++/14.2.0/cstring:43,
                 from src/esphome/core/helpers.h:6,
                 from src/esphome/core/component.h:8,
                 from src/esphome/components/climate/climate.h:3,
                 from src/esphome/components/panasonic_ac/esppac_cnt.h:1,
                 from src/esphome/components/panasonic_ac/esppac_cnt.cpp:1:
/data/cache/platformio/packages/toolchain-xtensa-esp-elf/xtensa-esp-elf/include/string.h:36:18: note:   initializing argument 1 of 'int strcmp(const char*, const char*)'
   36 | int      strcmp (const char *, const char *);
      |                  ^~~~~~~~~~~~
src/esphome/components/panasonic_ac/esppac_cnt.cpp:256:51: error: cannot convert 'esphome::StringRef' to 'const char*' in initialization
  256 |     const char *fanMode = call.get_custom_fan_mode();
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~^~
      |                                                   |
      |                                                   esphome::StringRef
src/esphome/components/panasonic_ac/esppac_cnt.cpp:299:48: error: cannot convert 'esphome::StringRef' to 'const char*' in initialization
  299 |     const char *preset = call.get_custom_preset();
      |                          ~~~~~~~~~~~~~~~~~~~~~~^~
      |                                                |
      |                                                esphome::StringRef
src/esphome/components/panasonic_ac/esppac.cpp: In member function 'void esphome::panasonic_ac::PanasonicAC::set_vertical_swing_select(esphome::select::Select*)':
src/esphome/components/panasonic_ac/esppac.cpp:219:55: error: cannot convert 'esphome::panasonic_ac::PanasonicAC::set_vertical_swing_select(esphome::select::Select*)::<lambda(const std::string&, size_t)>' to 'std::function<void(unsigned int)>&&'
  219 |   this->vertical_swing_select_->add_on_state_callback([this](const std::string &value, size_t index) {
      |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                       |
      |                                                       esphome::panasonic_ac::PanasonicAC::set_vertical_swing_select(esphome::select::Select*)::<lambda(const std::string&, size_t)>
  220 |     if (value == this->vertical_swing_state_)
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~          
  221 |       return;
      |       ~~~~~~~                                          
  222 |     this->on_vertical_swing_change(value);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~             
  223 |   });
      |   ~                                                    
In file included from src/esphome/components/panasonic_ac/esppac.h:4,
                 from src/esphome/components/panasonic_ac/esppac.cpp:1:
src/esphome/components/select/select.h:81:60: note:   initializing argument 1 of 'void esphome::select::Select::add_on_state_callback(std::function<void(unsigned int)>&&)'
   81 |   void add_on_state_callback(std::function<void(size_t)> &&callback);
      |                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
src/esphome/components/panasonic_ac/esppac.cpp: In member function 'void esphome::panasonic_ac::PanasonicAC::set_horizontal_swing_select(esphome::select::Select*)':
src/esphome/components/panasonic_ac/esppac.cpp:228:57: error: cannot convert 'esphome::panasonic_ac::PanasonicAC::set_horizontal_swing_select(esphome::select::Select*)::<lambda(const std::string&, size_t)>' to 'std::function<void(unsigned int)>&&'
  228 |   this->horizontal_swing_select_->add_on_state_callback([this](const std::string &value, size_t index) {
      |                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                         |
      |                                                         esphome::panasonic_ac::PanasonicAC::set_horizontal_swing_select(esphome::select::Select*)::<lambda(const std::string&, size_t)>
  229 |     if (value == this->horizontal_swing_state_)
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~          
  230 |       return;
      |       ~~~~~~~                                            
  231 |     this->on_horizontal_swing_change(value);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~             
  232 |   });
      |   ~                                                      
src/esphome/components/select/select.h:81:60: note:   initializing argument 1 of 'void esphome::select::Select::add_on_state_callback(std::function<void(unsigned int)>&&)'
   81 |   void add_on_state_callback(std::function<void(size_t)> &&callback);
      |                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
src/esphome/components/panasonic_ac/esppac_wlan.cpp: In member function 'virtual void esphome::panasonic_ac::WLAN::PanasonicACWLAN::control(const esphome::climate::ClimateCall&)':
src/esphome/components/panasonic_ac/esppac_wlan.cpp:113:51: error: cannot convert 'esphome::StringRef' to 'const char*' in initialization
  113 |     const char *fanMode = call.get_custom_fan_mode();
      |                           ~~~~~~~~~~~~~~~~~~~~~~~~^~
      |                                                   |
      |                                                   esphome::StringRef
src/esphome/components/panasonic_ac/esppac_wlan.cpp:167:48: error: cannot convert 'esphome::StringRef' to 'const char*' in initialization
  167 |     const char *preset = call.get_custom_preset();
      |                          ~~~~~~~~~~~~~~~~~~~~~~^~
      |                                                |
      |                                                esphome::StringRef
*** [.pioenvs/bedroomac/src/esphome/components/panasonic_ac/esppac_cnt.cpp.o] Error 1
*** [.pioenvs/bedroomac/src/esphome/components/panasonic_ac/esppac_wlan.cpp.o] Error 1
*** [.pioenvs/bedroomac/src/esphome/components/panasonic_ac/esppac.cpp.o] Error 1
========================== [FAILED] Took 7.93 seconds ==========================
========== [ERROR] /config/esphome/bedroomac.yaml ==========

[sstickel]

yup, same here.

[Jalakas]

Can you test this pull request: #175

[atax112]

Can you test this pull request: #175

Sure, but...how do I test?
Running the esphome update process has same errors.
I believe I need to manually update something package/library related or?
Sorry, still havent figured out the whole github/PR, update, push pull stuff

[Jalakas]

Sure, but...how do I test?

After ESPHome update, as it seems you have, temporarily replace in your YAML. Depends how you use it, change:

external_components:

• source: github://DomiStyle/esphome-panasonic-ac

line to

• source: github://chwdt/esphome-panasonic-ac

or

external_components:

• source:
  type: git
  url: https://github.com/DomiStyle/esphome-panasonic-ac

line to

  url: https://github.com/chwdt/esphome-panasonic-ac

After testing or pull request is merged, switch url back...

[atax112]

Ah, makes perfect sense.

Thank you for the guidance.
Replaced it, installed it.

Indexing .pioenvs/bedroomac/bootloader/esp-idf/micro-ecc/libmicro-ecc.a Linking .pioenvs/bedroomac/bootloader.elf Building .pioenvs/bedroomac/bootloader.bin Creating ESP32 image... Successfully created ESP32 image. Linking .pioenvs/bedroomac/firmware.elf

Succesfull compilation and OTA update of the esphome device.

THANK YOU! @Jalakas

[Jalakas]

Don't thank me; we should thank @chwdt for this pull request.
@atax112, it would be great if you could also perform a runtime test and add your results to: #175

[atax112]

Thank you @chwdt!

Started the AC unit etc, works fine as expected...
Commented over on ##175

Edit: seems like the unit isn't updating the status or taking commands correctly when switching fan speeds while on heat, cooling seems to be fine, but this may have been the same before. Don't really use ac for heat.

[ultra-alex]

thanks. update worked here too.
can you please explain a bit further whats happening here?

After testing or pull request is merged, switch url back...

[atax112]

@ultra-alex my understanding is, that once the fix is merged to main, we will need to switch back the url to the original repo for the component, although I guess leaving it as is with chwdts fix should also work until it is removed or similar

[ultra-alex]

thanks everybody.

[svalcken]

same here.
a solution exist, thanks Jalakas.

can it integrated into this repository to fix this issue?

[sstickel]

Hey Guys,

ESPHome 2026.1.4 on my HA installation just updated the module in my Panasonic AC and succeeded.

I carefully read the release notes of the releases since 2026.1.0 but did not find this to be merged.

Now I am confused...