Could not use the move tool because there is not enough memory (RAM).

Hi,

We're sorry about the trouble with Photoshop due to the memory error. Would you mind sharing the version of Photoshop you're using along with your computers macOS versions? Do you get this error only while using the move tool? Have you tried using Photoshop with no other apps running in the background to check if you still get the same error?

You can try optimizing the preferences of Photoshop to check if that helps. You can check the steps suggested here: https://helpx.adobe.com/photoshop/kb/optimize-photoshop-cc-performance.html

If the issue persists, you can try to reset the preferences of Photoshop using the steps mentioned here: https://adobe.ly/2Qzc0K3

Please backup your settings prior to resetting the preferences. You can check: https://adobe.ly/2vNz6FG

Let us know how it goes!

Regards,

Nikunj