FAQ.md

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     * The example data is prepared for the dev-branch of backbone. How to download it, you find here: https://gitlab.vtt.fi/backbone/backbone/-/wikis/Getting-started/Quick-Start
 * **When typing in the path to my input data in the command line of GAMS studio, the font becomes red and I get an error when executing backbone.**
     * Check your command for spelling mistakes and unwanted spaces. The path to your data may also not contain spaces.
+* **I set a constraint (like emissionCap) to 0, but backbone seems to ignore it.**
+    * GAMS does read parameters with the value 0 as if they were not there. To set a constraint to 0, set it to "eps" instead.
 * **I have set an emissionCap/energyShareMax/energyShareMin, but my model does not seem to care.**
     * For these constraints you have to use the invest model. In the schedule model, these constraints are ignored.
 * **I have build a model with integer investments/efficiencies. Backbone never invests or uses more than 100 units, although it would be cheaper.**