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Voilà ce que j'obtient comme erreur :

FileUpload.ino:11:19: error: Flash.h: No such file or directory
FileUpload.ino: In function 'void send_file_name(TinyWebServer&, const char*)':
FileUpload:58: error: no match for 'operator<<' in 'web_server << (const __FlashStringHelper*)({...})'
FileUpload:66: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:70: error: no match for 'operator<<' in 'web_server << (const __FlashStringHelper*)({...})'
FileUpload.ino: In function 'void file_uploader_handler(TinyWebServer&, TinyWebPutHandler::PutAction, char*, int)':
FileUpload:102: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:118: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload.ino: In function 'void setup()':
FileUpload:127: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:145: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:148: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:153: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:157: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:167: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:171: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'
FileUpload:174: error: no match for 'operator<<' in 'Serial << (const __FlashStringHelper*)({...})'

Merci d'avance ! :slight_smile: