Resolve "DesignFile path not followed"

Closes #41 (closed)

workflow/main.nf

@@ -57,7 +57,7 @@ readsList = Channel
 
 // Define regular variables
 pairedEnd = params.pairedEnd
-designFile = params.designFile
+designFile = Channel.fromPath(params.designFile)
 genomeSize = params.genomeSize
 genome = params.genome
 chromSizes = params.chromSizes
@@ -78,7 +78,7 @@ process checkDesignFile {
 
   input:
 
-  designFile
+  file designFile
   file readsList
 
   output: