Error Compiling Library ESPAsyncWebServer

[Zhu-jiatong]

Board

Any

Device Description

Any

Hardware Configuration

Any

Version

v3.0.0

IDE Name

Arduino IDE with VSCode

Operating System

Windows 10

Flash frequency

80Mhz

PSRAM enabled

no

Upload speed

921600

Description

Cannot compile sketch that uses ESPAsyncWebServer. It seems to be an issue with breaking changes to core library.

Sketch

#include <ESPAsyncWebServer.h>
#include <SD.h>

AsyncWebServer server(80);

void setup()
{
	Serial.begin(115200);
}

void loop()
{
}

Debug Message

C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp: In function 'bool getMD5(uint8_t*, uint16_t, char*)':
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp:74:3: error: 'mbedtls_md5_starts_ret' was not declared in this scope; did you mean 'mbedtls_md5_starts'?
74 |   mbedtls_md5_starts_ret(&_ctx);
|   ^~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_md5_starts
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp:75:3: error: 'mbedtls_md5_update_ret' was not declared in this scope; did you mean 'mbedtls_md5_update'?
75 |   mbedtls_md5_update_ret(&_ctx, data, len);
|   ^~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_md5_update
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp:76:3: error: 'mbedtls_md5_finish_ret' was not declared in this scope; did you mean 'mbedtls_md5_finish'?
76 |   mbedtls_md5_finish_ret(&_ctx, _buf);
|   ^~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_md5_finish
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncEventSource.cpp: In member function 'void AsyncEventSourceClient::_queueMessage(AsyncEventSourceMessage*)':
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncEventSource.cpp:188:7: error: 'ets_printf' was not declared in this scope; did you mean 'vswprintf'?
188 |       ets_printf("ERROR: Too many messages queued\n");
|       ^~~~~~~~~~
|       vswprintf
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp: In member function 'void AsyncWebSocketClient::_queueMessage(AsyncWebSocketMessage*)':
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:551:7: error: 'ets_printf' was not declared in this scope; did you mean 'vswprintf'?
551 |       ets_printf("ERROR: Too many messages queued\n");
|       ^~~~~~~~~~
|       vswprintf
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp: In member function 'IPAddress AsyncWebSocketClient::remoteIP()':
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:832:28: error: call of overloaded 'IPAddress(unsigned int)' is ambiguous
832 |         return IPAddress(0U);
|                            ^
In file included from C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/Arduino.h:196,
from C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:21:
C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/IPAddress.h:115:3: note: candidate: 'IPAddress::IPAddress(const ip_addr_t*)'
115 |   IPAddress(const ip_addr_t *addr);
|   ^~~~~~~~~
C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/IPAddress.h:73:3: note: candidate: 'IPAddress::IPAddress(const IPAddress&)'
73 |   IPAddress(const IPAddress &address);
|   ^~~~~~~~~
C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/IPAddress.h:72:3: note: candidate: 'IPAddress::IPAddress(const char*)'
72 |   IPAddress(const char *address);
|   ^~~~~~~~~
C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/IPAddress.h:69:3: note: candidate: 'IPAddress::IPAddress(const uint8_t*)'
69 |   IPAddress(const uint8_t *address);
|   ^~~~~~~~~
C:\Users\...\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.0.0\cores\esp32/IPAddress.h:67:3: note: candidate: 'IPAddress::IPAddress(uint32_t)'
67 |   IPAddress(uint32_t address);
|   ^~~~~~~~~
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp: In constructor 'AsyncWebSocketResponse::AsyncWebSocketResponse(const String&, AsyncWebSocket*)':
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:1262:3: error: 'mbedtls_sha1_starts_ret' was not declared in this scope; did you mean 'mbedtls_sha1_starts'?
1262 |   mbedtls_sha1_starts_ret(&ctx);
|   ^~~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_sha1_starts
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:1263:3: error: 'mbedtls_sha1_update_ret' was not declared in this scope; did you mean 'mbedtls_sha1_update'?
1263 |   mbedtls_sha1_update_ret(&ctx, (const unsigned char*)key.c_str(), key.length());
|   ^~~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_sha1_update
C:\Users\...\Documents\Arduino\libraries\ESPAsyncWebServer\src\AsyncWebSocket.cpp:1264:3: error: 'mbedtls_sha1_finish_ret' was not declared in this scope; did you mean 'mbedtls_sha1_finish'?
1264 |   mbedtls_sha1_finish_ret(&ctx, hash);
|   ^~~~~~~~~~~~~~~~~~~~~~~
|   mbedtls_sha1_finish
Error during build: exit status 1
IntelliSense configuration updated. To manually rebuild your IntelliSense configuration run "Ctrl+Alt+I"
[Error] Verifying sketch 'TestServer.ino': Exit with code=1

Other Steps to Reproduce

Compile the sketch using the 3.0.0 version.

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[Zhu-jiatong]

Same issue: me-no-dev/ESPAsyncWebServer#1410

[lbernstone]

This is a fairly easy fix, but the issue belongs in the library, not here.

[me-no-dev]

will fix it these days

[ctodor]

guys, heads up, ESPAsyncWebServer is bugy and it will do a mem. corruption sooner or later. There is a big "desing" flaw on that lib. ESPAsyncWebServer uses AsynTcp lib, onDisconnect callback delete an AsyncClient pointer allocated by AsyncServer. On short, there is a "delete this" for an AsyncClient pointer, which is at least wrong.
My app. crashed random, sometime after few hours, sometime after few days.

[lbernstone]

Please don't hijack issues. Open an issue in the appropriate forum. Post a complete breakdown of the problem, along with code that demonstrates the issue.

[ctodor]

@lbernstone sorry for my prev. post. it seems the procedure is more important than the issue it self. should I delete my prev. comment?

[lbernstone]

Your question is not going to be answered here, since this is not the repository for ESPAsyncWebServer. You can interpret that as a focus on process if you like,

[ctodor]

@lbernstone sorry, but you said "your question....", about what question are you talking about?
There were only one question, asking if shall I delete my post, there were no question regarding ESPAsyncWebServer, just a warning.

[VojtechBartoska]

Hello, as mentioned above, this problem need to be solved in ESPAsyncWebServer library. There are no action points in this repo, closing.

Relevant ticket: me-no-dev/ESPAsyncWebServer#1410

[rashmithachamikara]

For anyone having trouble with this now, I made the compiler's suggested changes manually in library files and got it to work. Though this might not be the best solution, it will work.

For example, for this error:
C:\Users...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp:74:3: error: 'mbedtls_md5_starts_ret' was not declared in this scope; did you mean 'mbedtls_md5_starts'?

1. Open C:\Users...\Documents\Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp in a text editor
2. Go to line 74
3. Change error: 'mbedtls_md5_starts_ret' to 'mbedtls_md5_starts'

Do this for all compiler suggestions.

Here's all the changes I made.

Arduino\libraries\ESPAsyncWebServer\src\WebAuthentication.cpp

#include <mbedtls/md5.h>  // Add this include at the top

//Changes in this function
bool getMD5(uint8_t* data, uint16_t len, char* output) {
  mbedtls_md5_context _ctx;
  unsigned char _buf[16];

  mbedtls_md5_init(&_ctx);
  mbedtls_md5_starts(&_ctx);  // Change this line
  mbedtls_md5_update(&_ctx, data, len);  // Change this line
  mbedtls_md5_finish(&_ctx, _buf);  // Change this line
  mbedtls_md5_free(&_ctx);

  for (int i = 0; i < 16; i++) {
    sprintf(output + (i * 2), "%02x", _buf[i]);
  }

  return true;
}

In all code files where ets_printf() exists.
Use the find tool to locate all ets_printf and change to printf. (Eg: in AsyncWebSocket.cpp and AsyncEventSource.cpp)

printf("ERROR: Too many messages queued\n");  // Change this line (Example)

[rlbrinkman]

I made the changes shown by rashmithachamikara above, but there was no change in the error messages generated when I compiled my sketch. Possible differences in my environment that may have rendered the changes ineffective:

1. My target device is "Al Thinker ESP32-CAM"
2. I am using Arduino IDE 1.8.19, not IDE 2.x
3. I tried both #include <ESPAsyncWebServer.h> and #include "ESPAsyncWebServer.h" but got no change in results

Any suggestions?

This problem has been around for a few months now; is a fix on the horizon?