Skip to main content
Skip table of contents

Error: Cannot Start Omnis. Directory must be present. It could not be created.

When attempting to open CDM+ on macOS you receive this message:


Could start Omnis.

Directory '/Users/[user name]/Library/Application Support/Suran/[porgram name]/omnispdf/temp' must be present.

It could not be created.


  1. Quit CDM+
  2. Open the terminal and run this command:

    sudo chown -R $(whoami) ~/Library
  3. Enter your macOS user password when prompted and press the return key
  4. Restart CDM+


This error is caused by incorrect permissions within the user's Library folder on macOS. The above command resets the Library folder to be owned by the user.

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.