Hey all, I've been trying to run a workflow on Galaxy, which basically attempts to establish a correlation between the Chip-Chip, Polymerase binding and Dnase Hypersensitivity data. The input would be these 3 files, I am initially performing a liftover on the Chip-Chip data to convert from hg18 to hg19 and then using the output to establish the correlation. The following error keeps coming up 'Failed runtime validation of To (An invalid option was selected, please verify)' Can anyone please tell me what this might mean? This came up while attempting to run the following tool Traceback (most recent call last): File "/galaxy/home/g2main/galaxy_main/lib/galaxy/jobs/runners/__init__.py", line 121, in prepare_job job_wrapper.prepare() File "/galaxy/home/g2main/galaxy_main/lib/galaxy/jobs/__init__.py", line 656, in prepare self.tool.handle_unvalidated_param_values( incoming, self.app ) File "/galaxy/home/g2main/galaxy_main/lib/galaxy/tools/__init__.py", line 2343, in handle_unvalidated_param_values self.handle_unvalidated_param_values_helper( self.inputs, input_values, app ) File "/galaxy/home/g2main/galaxy_main/lib/galaxy/tools/__init__.py", line 2382, in handle_unvalidated_param_values_helper raise LateValidationError( message ) LateValidationError Any assistance would be highly appreciated!! Thanks -Sameer