"Error: scripterror: Illegal path or script error" using grunt-template-jasmine-requirejs

Question

I want to use grunt to run jasmine tests automatically. I have never done that before and I am constantly facing errors I don't understand... I want to use grunt-contrib-jasmine and grunt-template-jasmine-requirejs. I added this to my grunt file:

jasmine: {
    jasmine_tests: {
        src: 'public/js/app/**/*.js',
        options: {
            specs: 'spec/*Spec.js',
            helpers: 'spec/*Helper.js',
            template: require('grunt-template-jasmine-requirejs'),
            templateOptions: {
                requireConfig: {
                    baseUrl: '',
                    paths: {
                        "i18n": "../libs/require-i18next/require-i18next/i18next",
                        "i18next-builder": "../libs/require-i18next/require-i18next/i18next-builder",
                        "jquery": "../libs/jquery/dist/jquery",
                        ...
                    },
                    shim: {
                        "jquerymobile": ["jquery"],
                        ....
                    }
                }
            }
        }
    }
},

When I run grunt jasmine i get hundreds of errors. It seems that not a single file can be loaded.

Running "jasmine:jasmine_tests" (jasmine) task

Testing jasmine specs via PhantomJS

Error: scripterror: Illegal path or script error: ['jquery'] at ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3_SpecRunner.html:38 ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:12 v ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:30 Error: scripterror: Illegal path or script error: ['underscore'] at ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3_SpecRunner.html:38 ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:12 v ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:30

...

Error: timeout: Load timeout for modules: i18n!locales_unnormalized2,datatables,sortDate...

...

http://requirejs.org/docs/errors.html#timeout at ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3_SpecRunner.html:38 ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:12 v ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:14 C ..........\C:\Users\Garrarufa\Documents\WebstormWorkspace\website3.grunt\grunt-contrib-jasmine\require.js:14

Warning: PhantomJS timed out, possibly due to an unfinished async spec. Use --force to continue.

Aborted due to warnings.

My specs are int the folder .../website3/specs, my requirejs module definitions that I want to test are in the folder .../webiste3/public/js/app/**. What is going wrong and what do I have to change? I don't really understand what i have to define in the gruntfile and in requireConfig. Maybe this has to do with it?

My directory structure:

- website3
    - .grunt
        + grunt-contrib-jasmine
    + node_modules
    - public
        - js
            - app
                + collections
                - config
                    > config.js
                + ...
                - views
                    + ...
                    > AddVehicleView.js
                    > ...
        + libs
        > index.html
    + server
    - spec
        + helpers
        - support
            > jasmine.json
        > AddVehicleViewSpec.js
    > .bowerrc
    > ...
    > _SpecRunner.html
    > Gruntfile.js
    > package.json