I am kicking off the data file data source using the sample multiColumnCsv.csv and multiColumnCsvImporter.java provided by Mango.
Somehow I am unable to save this data source as the template is empty(left hand side of the below pic). I can see both csv and java files are displayed on the compile template view(right hand side of the below pic), It seem confusing to me as it states the compiler is not found but yet the java file is shown. Without the java file may have caused the empty template.
So I did tried to upload the multiColumnCsvImporter.java file manually but no success. This is road block for me to move forward. It should be a simple step but I cant see my own mistake.
Any help is appreciated and thank you in advanced.
Mango core: 3.6.4
google chrome version 76