Symptoms

Error "Unable to use the working folder %very long path%" when starting a workflow.

Cause

The error occurs due to the path length limitation in Windows.

Resolution

In order to bypass the path length limitation, it is necessary to add the "\\?\" prefix to the path.

Example: «\\?\D:\very long path»

The "\\?\" prefix can also be used with the network path. To specify a network path, use the "\\?\UNC\" prefix.

Example: «\\?\UNC\machinename\sharedfolder»