After upgrading #C02FC6VFQG1 to nf-schema 2.7.2 I get this error:

ERROR ~ Argument of `file()` function cannot be empty

 -- Check script 'subworkflows/nf-core/utils_nfschema_plugin/main.nf' at line: 72 or see '.nextflow.log' file for more details

Line 72 is the call to

validateParams

in:

if(validate_params) {
        validateOptions = [:]
        if(parameters_schema) {
            validateOptions << [parametersSchema: parameters_schema]
        }
        if(cli_typecast != null) {
            validateOptions << [cliTypecast: cli_typecast]
        }
        validateParameters(validateOptions)
    }

I call the utility function like this from the local subworkflow:

UTILS_NFSCHEMA_PLUGIN (
        workflow,
        validate_params,
        null,
        help,
        help_full,
        show_hidden,
        before_text,
        after_text,
        command,
        null
    )

I.e. with

null

for

parameters_schema

. A couple of

println

shows that neither of the two `if`s are visited, and

validateOptions

is

[:]

when the function is called. Running the pipeline with

--help

works. Tools version 4.0.2, fails both with Nextflow 26.4.03 and 25.10.4. Doing the same with #C01U1E95JQ5 just works. I can't find any differences between the two.