I want to write an article using smjour.cls class for this journal in ShareLatex because we are three authors and we want to work together, however after uploading the class to ShareLatex and add \documentclass{SMJOUR} at the top of my file, I got the following error:
LaTeX Error: File `SMJOUR.cls' not found.
Any help would be appreciated! I think it is related to the file path but the class is uploaded into the root directory where the main.tex file is, as follow:

SMJOUR.CLStoSMJOUR.cls? – Torbjørn T. Feb 15 '17 at 09:22