Description
In the validation process for a model in ModelBuilder, ArcGIS confirms that the output properties (such as cell size, extent, and mask) from each process can be set. This information is passed to the next process. When this error occurs, one or more of these output properties cannot be set. The model will not validate and will not run.
Solution
Review the input, output, and analysis properties for each process and ensure that they are set to valid arguments.