FAQ.md

@@ -42,14 +42,6 @@
 * **The value op01 is not respected as the maximum operation point of a unit.**
     * op01*capacity is not the maximum capacity of the unit - that´s simply "capacity". Just ignore the misleading VTT Wiki "On *p_unit* set *availability* to "1" and define *op00* and *op01* as the limits for operating shares, e.g. if the unit can operate at 40-100 % of maximum capasity, set *op00*=0,40 and *op01*=1,00."
 
-# Common Backbone Error messages
-* If GAMS studio shows you an error, you can click on the error message and see in which backbone line the error occured. Helpful to find the cause of the error. **Always look at the first error first. Later errors might only occur because of this first error.**
-* **Domain Violation Error**
-    * All grids, nodes, units etc. must be defined in the first sheets of the excel file (grid/node/unit etc.). A domain violation error indicates that in a later sheet (e.g. p_gnu_io), something was referenced, which was not defined in the first sheets. This can be either caused by a missing definition or by a spelling mistake (pay attention here: powerplant is for example not the same as power-plant). When clicking on the error message in GAMS studio, you can find the sheet that causes this error.
-* **gdxxrw failed**
-    * The tool, that converts your excel sheet into GAMS data failed. That is usually caused by mistakes in the backbone command line (Did you spell the pathes right? Did you use the right amount of quotation marks?). Gdxxrw can also fail, if you have double entries in your excel sheet (e.g. twice the unit "lignite powerplant 1" in the unit sheet).
-* **symbol not in gdx**
-    * A set or parameter is not included in the input data. Click on the error message to find out, which parameter causes the problem. Check your input data, whether the set/parameter is a sheet in the excel file and has a row in the index-sheet of the excel file. This error can also occur, if your input data was prepared for another backbone version than the one you have downloaded. Ask your supervisor if in doubt.
 # Pypsa-eur
 * **When using pypsa-eur, I get the error "symbolic privilege not held".**
     * You must run the shell you are using as administrator.