Error in OCR training. NULL clusterer error or as shown in image

While training my binary images i amgetting this error. I am following very correctly all steps but always this error prompts.

anyone has solution will be appreciated.. thank you.

[Walter Roberson]

The first thing I would try would be renaming the project so that it does not have a space in the project name.

If that was not enough, I would check to be sure that I had write access to the indicated directory. Oh, and that the D disk is not full.