I’m using FME 2020.2 (FME(R) 2020.2.0.0 (20201027 - Build 20787 - WIN64)) and I have ArcGIS Pro 2.6 and ArcGIS Desktop 10.4 (with 64 bit background geo-processing) installed. I have a File Geodatabase (FGDB) that FME is unable to read. The error I'm getting is :
“It could have failed to open because it contains ArcGIS Pro-only features, for example Arcade expressions. If this is the case, please install ArcGIS Pro-compatible ArcGIS Sever and 64-bit FME."
This FGDB contains a relatively new ESRI field type called contingent values on a feature class. ESRI notes this makes the FGDB incompatible with ArcMap and releases prior to ArcGIS Pro 2.3 and ArcGIS Enterprise 10.7.x. It appears that FME is defaulting to using the ArcGIS Desktop libraries rather than the newer ArcGIS Pro libraries when both application are installed. The only work around I have identified at this time is uninstalling ArcGIS Desktop. Once I do this FME will read the File Geodatabase without any errors