FMP15 Backward Relationship Error

Discussion created by alex_zueiv on May 13, 2016
Latest reply on Sep 27, 2016 by TSGal

Product and version


FileMaker Pro 15.0.1

FileMaker Server



OS and version


Mac OS X 10.11.4





iMac (21.5-inch)





When I try to open a served multi-file solution, that have bidirectional relationships (main->related in the main file & related->main in the related file), with FMP15 launched on the same Mac that serves the files, it shows the following error message:


The temporary file “FMS_76E830F686A28BD56FEDAA83DCBF450C.fch” could not be created on the system disk.  Use a different name, make more room on the disk, or unlock it.


While that file is created in the folder ~/Library/Caches/FileMaker/DBCache/… and opened by FileMaker


It seems to occur when I launch FMP 15 Client for Mac OS X on FM Server machine only.



How to replicate


Launch FMP 15 for Mac OS X on FM Server machine, open some served solution that has two or more related files, and try to define any backward relationship (related->main) in the related file.





Replace .local name of the host with it's IP address in the Open Remote File dialog.


Or add additional references to the existing External Data Sources in the form of FileMaker Network file path format:





Or even better: