TeX Live and MacTeX ⇒ MacTeX with Texstudio

[gl652]

Hello,
I have installed MacTex on my macbookpro and I use TeXstudio editor.
When I use the command Latex with this code :

Code: Select all

\documentclass{article}
\begin{document}
	Hello everyone
\end{document}

I obtain this message :

Error: Could not start the command: /usr/texbin/latex -src -interaction=nonstopmode "essai".tex

Can you help me to understand this problem and how can I solve it ?
Thank you very much.