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Tech Tip: Read-Only in Remote Development in 4D Server in Project Mode
PRODUCT: 4D | VERSION: 21 | PLATFORM: Mac & Win
Published On: February 2, 2026
The new way of developing concurrently in a 4D Server has enabled a new era of collaboration between 4D developers.

Here is the original announcement in 4D Blog.

When following the steps in the blog, and sharing the root folder in the network, there are some conditions where the developer accesses a read-only version of the development mode. In the method editor, a lock will symbolize that the method is read-only.

A common cause for this issue is wrongly selecting the .4dbase folder as the folder to be shared in the network. After converting a binary database to project mode, the original binary files remain in the folder, while new files and folders are added for the 4D project.

For the concurrent development feature to work properly, the project root folder should be selected. This means the folder containing the Project, Data, Resources, and other folders.