SdFat conflict with SPIFFS/fs

[williamesp2015]

I am using SPIFFS to read and write SPIFFS on ESP32 using Arduino platform. I have seriouse problem with File definitions; File logFile = SPIFFS.open(FILENAME_DATALOG, FILE_WRITE); LowLatencyLogger.cpp:658:56: error: invalid conversion from 'int' to 'const char*' [-fpermissive] I did try this but did not help me. fs::File logFile = SPIFFS.open(FILENAME_DATALOG, FILE_WRITE);

[greiman]

I have no idea since I don't use esp32.

[uzi18]

@williamesp2015 please paste rest of error

[williamesp2015]

Hi @uzi18. If FS.h change class File name it will solve the problem. I tried to change in my project but other files like WebServer.cpp uses FS.h too. Complete errors: src\FatLib/ArduinoFiles.h:122:7: error: redefinition of 'class fs::File' C:/users/am/.platformio/packages/framework-arduinoespressif32/libraries/FS/src/FS.h:47:7: error: previous definition of 'class fs::File' src\FatLib/FatFileSystem.h:95:13: error: 'class fs::File' has no member named 'open'

Finally, I changed File to File in SdFat: typedef File32 File; and similar definitions

[nodoubtman]

What are the exact definitions ? I have the same problem.

Thanks. Marc.

[greiman]

File is only defined here in SdFat.h at about line 450

//
// Only define File if FS.h is not included.
// Line with test for __has_include must not have operators or parentheses.
#if defined __has_include
#if __has_include(<FS.h>)
#define HAS_INCLUDE_FS_H
#warning File not defined because __has_include(FS.h)
#endif  // __has_include(<FS.h>)
#endif  // defined __has_include
#ifndef HAS_INCLUDE_FS_H
#if SDFAT_FILE_TYPE == 1 || defined(DOXYGEN)
/** Select type for File. */
typedef File32 File;
#elif SDFAT_FILE_TYPE == 2
typedef ExFile File;
#elif SDFAT_FILE_TYPE == 3
typedef FsFile File;
#endif  // SDFAT_FILE_TYPE
#endif  // HAS_INCLUDE_FS_H

You can just use File32, ExFile, or FsFile and never define File by disabling or removing this section.

File was added to the Arduino port of SdFat in 2009 so I added a typedef to be backward compatible.

[nodoubtman]

Thanks for answering. I dont understand. What i have to do to use spiffs with sdfat ? Thanks. Have a good day. Marc.

[greiman]

What i have to do to use spiffs with sdfat ?

The simplest thing is to do what @williamesp2015 did.

Change File to File in the above section of SdFat.h and use File in your app.

You can also delete the above section of SdFat.h and use the appropriate class name, File32, ExFile, or FsFile.

[ockernuts]

If fs::FS compatibility is needed, this can be acchieved by writing an adapter: see https://github.com/greiman/SdFat/issues/148#issuecomment-1464448806