Double-click the TOS_ESB-macosx-cocoa.app executable to
launch your Talend Studio.
If you install Talend Studio
manually using the zip archive file, and if you get one of the following two
messages as shown in below screenshots when trying to launch Talend Studio for the first time,
open the terminal, go to the directory above the Talend Studio top directory, execute
xattr -d com.apple.quarantine <Talend-Studio>/*,
<Talend-Studio> is the root folder name of your
Talend Studio, and then
relaunch your Talend Studio.