New Qt Creator plugin has malformed json.in file

When using the wizard to create a new Qt Creator Plugin a malformed json.in file is created, that makes the plugin fail to load after it's been built.

In particular the problem is that the json.in file is something like this:

    "Name" : "MyPlugin3",
    "Version" : "0.0.1",
    ...

Instead of the right format:

    \"Name\" : \"MyPlugin4\",
    \"Version\" : \"0.0.1\",
    ...

That works fine.

A workaround is to add a \ before each " in the json.in file and then rebuild, this should be fixed in Qt Creator though.

Steps to reproduce

• Start Qt Creator
• New Project > Library > Qt Creator Plugin
• Complete the wizard and create the new project
• Build the new project

Building will show an error like:

"Warning: Plugin Metadata file "MyPlugin.json" does not contain a valid JSON object. Declaration will be ignored"

After restarting Qt Creator it's possible to notice that the plugin is not loaded.