AEM as cloud service, /apps and /libs directories are in read-only mode

AEM cloud service makes the out of the box and custom codes immutable. Once we deployed the code in the AEM server, we will not be able to modify or create any content or node under the /apps and /libs directories using CRXDE Lite. When we try to do so, then it will throw an error "Could not save changes. Received 500 () for saving changes in workspace crx.default. Unknown error (Error Code: 500)". Below is the screenshot, when we tried creating a folder "myProject" under /apps folder.



The only way to change the code is to go for a fresh build and deploy the code. 

Hope this helps you!

References:

• AEM as cloud service archetype
• How AEM as a cloud service scale?