When trying to duplicate a mashup, the Dev Hub displays the error "The mashup is incomplete and cannot be opened or duplicated (wbfolder.wbl file is missing)"

A mashup has been imported into Qlik Sense, but when trying to duplicate it via the Dev Hub it displays the error "The mashup is incomplete and cannot be opened or duplicated (wbfolder.wbl file is missing)", or the duplication succeeds but some files are missing in the duplicate.

Environments:

• Qlik Sense Enterprise, any version

The .wbl file is missing or files in your mashup are not listed out in the .wbl file; any files not listed aren't included in the duplication.

Does the file exists?

Verify that the .WBL file exists.

The file exists - is the content correct?

Verify that the .WBL file lists out every single file in your mashup.

Example: WBL: Basic mashup template:

basic-mashup-template.qext; 
basic-mashup-template.html; 
basic-mashup-template.js; 
basic-mashup-template.css;

Please see the public documentation on creating mashup templates for information regarding how mashups need to be structured.

As a general recommendation, we recommend developing your mashup in your own Integrated Development Environment (IDE) and deploying them on a separate web server.
See Deploying Mashups in the public documentation.