java.lang.ClassNotFoundException: com.is2t.java.io.FatFsFileSystem

MicroEJ SDK
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1

Hi,

I have a Wrover kit with a micro-SD card. Built-in wifi test is working well reading properties to configure local network.
I’m trying to read files and I have the exception in this topic subject. I’m using this dependency for file system:

What did I forget?

I have some messages before exception:

com.microej.wadapps.kernel.bootlist.bootlist WARNING: boot.black.properties not found.
com.microej.wadapps.kernel.bootlist.embeddedbootlist WARNING: Use default embedded bootlist.
ej.wadapps.applicationstore.applicationstoreconnectioninfo INFO: Storage id wadapps_application_store_info not available.

2

Hello David,

The ESP32WROVER Black VEE does not provide access to the FileSystem library, see release note.

If you need to develop a Multi-Sandbox application using the FS library on the ESP32WROVER, I would recommend you to build your own ESP32WROVER Firmware from our Kernel GREEN sources:

Best regards,

Alex

3

I’m working on the real device not with VEE.

4

Hello David,

MICROEJ VEE is the application container that both runs in simulation and on the device.

Please refer to our Glossary for more information: MicroEJ Glossary — MicroEJ Documentation

Regards,

Alex