NX UGII_CAM_LIBRARY_TOOL_INCLASS_DIR and reference to INCLASS folders. No MRL

You are not using MRL. Starting in version NX1899 the UGII_CAM_LIBRARY_TOOL_INCLASS_DIR contains only the mrl_readme.txt

Folder Structure of UGII_CAM_LIBRARY_TOOL_INCLASS_DIR

Versions prior to NX1899...

Version of NX1899 and above..

.
The mrl_readme.txt states the following...

The old INCLASS and MRL Event Handlers (TCL) and Definition Files (DEF) were removed from the NX1899 kit to avoid problems after NX updates.
These files are available in the Manufacturing Resource Library (MRL) kit found in the "wntx64\advanced_installations" directory of the Teamcenter installation kit.
The directory contains an "advanced_installations.zip" file with the MRL kit.

1. Extract the advanced_installations.zip.
2. Start the MRL Installer (setup.exe).
3. Select the "Configure NX-CAM" option.
This copies the latest MRL files into the NX MACH directory.

Alternatively, copy the files manually from the directory "resource_management\MRL\nxlib\MACH" in the MRL kit to the NX MACH directory.

Solution

In version NX1926, a new configuration has been added to address the incident. Please copy cam_teamcenter_ascii_library.dat from the  UGII_CAM_CONFIG_DIR, in the OOTB version of NX 1926, and place the it in the applicable release from NX1847 through NX1892.4101.

You're likely to have some housekeeping to complete. For instance, you may to point to a custom template_post.dat file. 

Hardware/Software Configuration

Platform: INTL64
OS: windows
OS Version: 1064
Product: NX
Application: CAM
Version: V1907
Function: TC_MFG

Ref: 002-8512497