https://community.blueprism.com/t5/Product-Forum/Debug-Code-Stage/m-p/48642#M4149 There is no debug facility I'm afraid. I suggestUse try/catchIntroduce a new, temporary number output called something like 'last known position'At strategic positions in the code add the line lkp += 1;Use the output value to try to figure out where the error is happening. Remove the output once the error is fixed Mon, 23 Jan 2017 21:39:00 GMT John__Carter 2017-01-23T21:39:00Z https://community.blueprism.com/t5/Product-Forum/Debug-Code-Stage/m-p/48641#M4148 Hey Guys, I have a Code stage which throws a exception "Object reference not set to an instance of an object." If i run my code in Visual Studio, there is no exception, I i run the same code in BP I get the mentioned exception. Unfortunately I cannot figure out at which point the exception is thrown. Is there a way to Debug C# code directly within BP or get at least a exception with more details? Thanks Sandro Mon, 23 Jan 2017 19:04:00 GMT https://community.blueprism.com/t5/Product-Forum/Debug-Code-Stage/m-p/48641#M4148 SandroPaetzold 2017-01-23T19:04:00Z https://community.blueprism.com/t5/Product-Forum/Debug-Code-Stage/m-p/48642#M4149 There is no debug facility I'm afraid. I suggestUse try/catchIntroduce a new, temporary number output called something like 'last known position'At strategic positions in the code add the line lkp += 1;Use the output value to try to figure out where the error is happening. Remove the output once the error is fixed Mon, 23 Jan 2017 21:39:00 GMT https://community.blueprism.com/t5/Product-Forum/Debug-Code-Stage/m-p/48642#M4149 John__Carter 2017-01-23T21:39:00Z