SPIFFS not working anymore

[viktak]

Dear All,
I have some ESP32 projects I developed in a past few years that I want to bring up to date. Previously I was using older versions of the espressif32 platform, like this:

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[env:esp32dev]
platform = espressif32@^3.5.0

Everything used to work fine. When I convert my projects to anything at or above 4.0.0 my projects compile and upload correctly (including the SPIFFS), but when it arrives to initializing the file system, I get the following error:

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E (1074) SPIFFS: mount failed, -10025

I can't find anything related on the internet that is relevant, i.e. after version 4.0.0

Any idea what is wrong here?

Thanks in advance for any pointers!

[viktak]

Well, I figured it out:

Previously, I had the following line in my platformio.ini:

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board_build.filesystem = littlefs

Once I removed it, I could mount the file system, and my code works as expected. The only minor issue remaining, is that now every time I load a web page, I get the following error:

[E][WebServer.cpp:649] _handleRequest(): request handler not found

I hope this will be of someone in the same shoes...