# ESP32 MP3 Player with SD Card Support - Outdated **URL:** \ **Category:** General\ **Created:** [January 21, 2024, 9:39am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782 "2024-01-21T09:39:34Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![suju](https://avatars.discourse-cdn.com/v4/letter/s/a698b9/32.png) [@suju](https://forum.sunfounder.com/u/suju)\ **Post date:** [January 21, 2024, 9:39am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/1 "2024-01-21T09:39:34Z")
I am having issues with this guide [7.5 MP3 Player with SD Card Support — SunFounder ESP32 Starter Kit documentation](https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/basic_projects/ar_mp3_player_sd.html) I have an error where this import is not recognized, and am unable to get the speaker + mp3 working. I have the latest version of the ESP8266Audio library installed. ```auto #include "AudioFileSourceSD_MMC.h" ``` ```auto fatal error: AudioFileSourceSD_MMC.h: No such file or directory #include "AudioFileSourceSD_MMC.h" ``` ---
**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Post date:** [January 22, 2024, 8:03am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/2 "2024-01-22T08:03:02Z")
It is possible that the files in your ESP8266Audio.zip library were not uploaded completely. You are missing AudioFileSourceSD\_MMC.h, which causes the error to be reported. We suggest you delete the previously downloaded code and re-download the new code package package and unzip it. Then reinstall the ESP8266Audio.zip library. You use manual installation, installation tutorial steps to install: [https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/arduino\_start/add\_libraries\_ar.html#install-lib-man](https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/arduino_start/add_libraries_ar.html#install-lib-man) After successful installation, go ahead and run the sample code to see how it works. ---
**Author:** ![suju](https://avatars.discourse-cdn.com/v4/letter/s/a698b9/32.png) [@suju](https://forum.sunfounder.com/u/suju)\ **Post date:** [February 1, 2024, 5:42am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/3 "2024-02-01T05:42:49Z")
Hi where are you getting the ESP8266Audio.zip library? I have installed the library from this source [GitHub - earlephilhower/ESP8266Audio: Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32](https://github.com/earlephilhower/ESP8266Audio) but it is still not recognizing the following import. ```auto #include "AudioFileSourceSD_MMC.h" ``` ---
**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Post date:** [February 2, 2024, 3:21am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/4 "2024-02-02T03:21:55Z")
ESP8266Audio.zip is included in our product code package. The path is:\esp32-starter-kit-main\c\libraries You use manual installation, installation tutorial steps to install: [https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/arduino\_start/add\_libraries\_ar.html](https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/arduino/arduino_start/add_libraries_ar.html) After successful installation, go ahead and run the sample code to see how it works. ![020201](https://canada1.discourse-cdn.com/flex029/uploads/sunfounder/original/1X/eac16662700c6a07ad3e8ac4eb19e26fbf5902d3.png) ---
**Author:** ![suju](https://avatars.discourse-cdn.com/v4/letter/s/a698b9/32.png) [@suju](https://forum.sunfounder.com/u/suju)\ **Post date:** [February 6, 2024, 7:52pm UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/5 "2024-02-06T19:52:49Z")
Thank you for your help. Where can I find the URL to your product code package? ---
**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Post date:** [February 7, 2024, 2:33am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/6 "2024-02-07T02:33:24Z")
Files are included in the code zip downloaded in the previous section: [Download the Code — SunFounder ESP32 Starter Kit documentation](https://docs.sunfounder.com/projects/esp32-starter-kit/en/latest/download_code.html) ![020701](https://canada1.discourse-cdn.com/flex029/uploads/sunfounder/original/1X/e4be21d79ad8c02794a921570960eb357fb4fca5.png) ---
**Author:** ![Zaphod](https://avatars.discourse-cdn.com/v4/letter/z/9de053/32.png) [@Zaphod](https://forum.sunfounder.com/u/Zaphod)\ **Post date:** [July 19, 2024, 5:58pm UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/7 "2024-07-19T17:58:23Z")
I also have an issue with this sketch: In file included from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp:23: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.h:56:5: error: ‘WiFiClient’ does not name a type 56 | WiFiClient client; | ^ ~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp: In member function ‘virtual bool AudioFileSourceHTTPStream::open(const char\*)’: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp:42:14: error: ‘client’ was not declared in this scope; did you mean ‘Client’? 42 | http.begin(client, url); | ^ ~~~~~ | Client c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp: In member function ‘virtual uint32\_t AudioFileSourceHTTPStream::readInternal(void\*, uint32\_t, bool)’: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp:105:3: error: ‘WiFiClient’ was not declared in this scope 105 | WiFiClient _stream = http.getStreamPtr(); | ^ ~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.cpp:105:15: error: ‘stream’ was not declared in this scope; did you mean ‘std::io\_errc::stream’? 105 | WiFiClient stream = http.getStreamPtr(); | ^ ~~~~~ | std::io\_errc::stream In file included from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\ios:42, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\ostream:38, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\bits\unique\_ptr.h:41, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\memory:76, from C:\Users\gouge\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.3\libraries\HTTPClient\src/HTTPClient.h:34, from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.h:26: c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\bits\ios\_base.h:204:24: note: ‘std::io\_errc::stream’ declared here 204 | enum class io\_errc { stream = 1 }; | ^ ~~~~~ In file included from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.h:31, from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp:28: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceHTTPStream.h:56:5: error: ‘WiFiClient’ does not name a type 56 | WiFiClient client; | ^ ~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp: In member function 'virtual bool AudioFileSourceICYStream::open(const char)': c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp:49:14: error: ‘client’ was not declared in this scope; did you mean ‘Client’? 49 | http.begin(client, url); | ^ ~~~~~ | Client c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp: In member function 'virtual uint32\_t AudioFileSourceICYStream::readInternal(void_, uint32\_t, bool)': c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp:118:3: error: ‘WiFiClient’ was not declared in this scope 118 | WiFiClient _stream = http.getStreamPtr(); | ^ ~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.cpp:118:15: error: ‘stream’ was not declared in this scope; did you mean ‘std::io\_errc::stream’? 118 | WiFiClient stream = http.getStreamPtr(); | ^ ~~~~~ | std::io\_errc::stream In file included from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\ios:42, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\ostream:38, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\bits\unique\_ptr.h:41, from c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\memory:76, from C:\Users\gouge\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.3\libraries\HTTPClient\src/HTTPClient.h:34, from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioFileSourceICYStream.h:26: c:\users\gouge\appdata\local\arduino15\packages\esp32\tools\esp-x32\2302\xtensa-esp32-elf\include\c++\12.2.0\bits\ios\_base.h:204:24: note: ‘std::io\_errc::stream’ declared here 204 | enum class io\_errc { stream = 1 }; | ^ ~~~~~ In file included from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioGeneratorMIDI.cpp:69: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\libtinysoundfont/tsf.h: In function 'void tsf\_channel\_midi\_control(tsf, int, int, int)': c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\libtinysoundfont/tsf.h:2100:1: error: insn does not satisfy its constraints: 2100 | } | ^ (insn 883 353 354 51 (set (reg:SF 19 f0 [371]) (mem/u/c:SF (symbol\_ref/u:SI ("_.LC223") [flags 0x2]) [0 S4 A32])) “c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\libtinysoundfont/tsf.h”:2053:106 49 {movsf\_internal} (nil)) during RTL pass: postreload c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\libtinysoundfont/tsf.h:2100:1: internal compiler error: in extract\_constrain\_insn, at recog.cc:2692 libbacktrace could not find executable to open Please submit a full bug report, with preprocessed source (by using -freport-bug). See [https://gcc.gnu.org/bugs/](https://gcc.gnu.org/bugs/) for instructions. c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputI2S.cpp: In member function ‘bool AudioOutputI2S::begin(bool)’: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputI2S.cpp:168:9: error: ‘esp\_chip\_info\_t’ was not declared in this scope 168 | esp\_chip\_info\_t out\_info; | ^ ~~~~~~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputI2S.cpp:169:24: error: ‘out\_info’ was not declared in this scope 169 | esp\_chip\_info(&out\_info); | ^ ~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputI2S.cpp:169:9: error: ‘esp\_chip\_info’ was not declared in this scope 169 | esp\_chip\_info(&out\_info); | ^ ~~~~~~~~~~~~ c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputI2S.cpp:232:28: error: ‘I2S\_MCLK\_MULTIPLE\_DEFAULT’ was not declared in this scope; did you mean ‘I2S\_MCLK\_MULTIPLE\_512’? 232 | .mclk\_multiple = I2S\_MCLK\_MULTIPLE\_DEFAULT, // Unused | ^ ~~~~~~~~~~~~~~~~~~~~~~~~ | I2S\_MCLK\_MULTIPLE\_512 c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputSPDIF.cpp: In constructor ‘AudioOutputSPDIF::AudioOutputSPDIF(int, int, int)’: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputSPDIF.cpp:108:22: error: ‘I2S\_MCLK\_MULTIPLE\_DEFAULT’ was not declared in this scope; did you mean ‘I2S\_MCLK\_MULTIPLE\_512’? 108 | .mclk\_multiple = I2S\_MCLK\_MULTIPLE\_DEFAULT, // Unused | ^ ~~~~~~~~~~~~~~~~~~~~~~~~ | I2S\_MCLK\_MULTIPLE\_512 c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputSPDIF.cpp: In member function ‘virtual bool AudioOutputSPDIF::SetRate(int)’: c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputSPDIF.cpp:186:26: error: too many arguments to function ‘void rtc\_clk\_apll\_enable(bool)’ 186 | rtc\_clk\_apll\_enable(1, 28, 8, 5, 0); | ~~~^~ In file included from c:\Users\gouge\Documents\Arduino\libraries\ESP8266Audio\src\AudioOutputSPDIF.cpp:45: C:\Users\gouge\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release\_v5.1-dc859c1e67\esp32/include/soc/esp32/include/soc/rtc.h:242:6: note: declared here 242 | void rtc\_clk\_apll\_enable(bool enable); | ^ ~~~~~~~~~~~~~~~~ ---
**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Post date:** [July 23, 2024, 8:05am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/8 "2024-07-23T08:05:47Z")
Which example you uploaded that caused this error? We suggest you to provide us more information (screenshots/videos) so that we can analyse and solve the problem. ---
**Author:** ![stef](https://avatars.discourse-cdn.com/v4/letter/s/76d3ee/32.png) [@stef](https://forum.sunfounder.com/u/stef)\ **Post date:** [March 12, 2025, 12:36pm UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/9 "2025-03-12T12:36:53Z")
this error (MP3\_PLAYER.ino.cpp.o):(.literal.\_Z5setupv+0x1c): undefined reference to `AudioFileSourceSD\_MMC::AudioFileSourceSD\_MMC(char const\*)’ what this dont work ☹ i am beginner 🙂 my board is :SunFounder ESP32 Ultimate Starter Kit with Battery & ESP32-WROOM-32E Board, RoHS Compliant and program : 7.5 MP3 Player with SD Card Support please help me (excuse my english i am from quebec french) 🙂 ---
**Author:** ![SunFounder\_Moderator](https://avatars.discourse-cdn.com/v4/letter/s/34f0e0/32.png) [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Post date:** [March 13, 2025, 9:42am UTC](https://forum.sunfounder.com/t/esp32-mp3-player-with-sd-card-support-outdated/782/10 "2025-03-13T09:42:26Z")
Please describe the problem you are encountering in detail. Is there an error occurring during the code upload process? Are all the necessary dependency libraries correctly installed? It would be even better if you could provide a video of the code uploading process, as it would help us analyze and resolve the issue more effectively.