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  VS Arduino › Visual Micro › General Board › ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory
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Normal Topic ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory (Read 6286 times)
turbok
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ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory
Nov 1st, 2020 at 1:44pm
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I am getting an error related to FS.h when I try to compile sketches using ESPAsyncWebServer on ESP32 in VisualMicro.

For example, attempting to compile the simple_server.ino example provided with ESPAsyncWebServer gives the following message:

ESPAsyncWebServer.h: 27:16: fatal error: FS.h: No such file or directory

The same sketch compiles with no problems for me in the Arduino IDE.
I have the same issue with other sketches and examples using that library.

Verbose output from VisualMicro attached.

Thanks in advance for any suggestions on what to try.
  
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turbok
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Re: ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory
Reply #1 - Nov 1st, 2020 at 4:48pm
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Re: ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory
Reply #2 - Nov 1st, 2020 at 10:35pm
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Hi

Thanks for the info. 

I see you have switched off Deep Search for Libraries. When you switch off Deep Search for Libraries it is then your responsbility to ensure that any libraries you need are #included in the .Ino code otherwise they are unknown.

It looks like the library you are using needs the FS library so either switch deep search back on or add #include <FS.h> into the project_name.ino

Does this help?

  
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Re: ESP32 ESPAsyncWebServer - fatal error: FS.h: No such file or directory
Reply #3 - Nov 2nd, 2020 at 8:05pm
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Great - yes thank you very much. Adding #include <FS.h> resolved it.

I had tried adding: #include "FS.h"

But had forgotten the difference between <> and "" in #include statements
https://www.arduino.cc/reference/en/language/structure/further-syntax/include/

  
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