I uninstalled end reinstalled but the problem does not solve
May I know the version of the Lightroom and the operating system type you are working on?
Can you also share the screenshot of the error message with us?
hi,I use mac ,an internal error has occured
cannot create required folder:/users/my name/library/application support/adobe/lightroom/develop presets
and the second warning is''an error occured when attempting to change module
Please set correct permissions on Lightroom folder inside Application support:
The Lightroom folder inside Application Support could have the wrong permissions preventing Lightroom from writing to it, which can cause this error.
- Navigate to the following folder: /Users/[user name]/Library/Application Support/Adobe/Lightroom.
- Highlight the Lightroom folder and chose File > Get Information.
- Under Sharing & Permission, verify that your have Read & Write Privileges. If not, click the padlock icon at the lower right, enter your password when prompted, then click the Read only entry and select Read & Write.
Refer to the following article for more help: Error changing modules
Please let us know if it helps.