Quite suddenly last night, the message "Tool has failed to open: stats.ExploratoryRegression"... occurs when I try to open any of the tools in the Spatial Statistics tools in the toolbox e.g. stats.IncrementalSpatialAutocorrelation. I had run these tools earlier in the evening.
I checked the web for similar issues and came across this post:
however, the cause identified in the above solution states this occurs upon update of version 2.1 to 2.2 causing the Pro Python Package manager to install a later version of Python than what is shipped with Pro (python 3.6.2 to 3.6.6) and that it results in missing 4 files: python.exe, python3.dll, python36.dll, pythonw.exe. However, all of these files are intact and I have been on v2.2 for a while.
My current setup: Windows 10, ArcGIS Pro v18.104.22.16813, Advanced User
I have access to a remote connection to a workstation running the same version of Pro and am experiencing the same problem. On the remote desktop I did try the Conda solution described in the above despite not having the same problem, but have only limited admin privileges and am not able to change the read-only setting on the Python\bin folder despite adding the Attributes column to the details view in window and applying the command
attrib -r +s "c:\program files\arcgis\pro\bin"
however this did not change the read-only property despite running the command and seeming to apply the changes to all of the subfolders and files.
***UPDATE - my workaround was to install an older version of Pro v. 2.0 for which I had the executable, and update the software via the update function. It appears to be working fine for now.