# HoneyBee Tutorial **URL:** \ **Category:** Packages\ **Tags:** function, honeybee\ **Created:** [November 17, 2019, 8:24pm UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269 "2019-11-17T20:24:37Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![rsolomonV6](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@rsolomonV6](https://forum.dynamobim.com/u/rsolomonV6)\ **Post date:** [November 17, 2019, 8:24pm UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/1 "2019-11-17T20:24:37Z")
Hi, I hope to learn how to use honeybee nodes, so far run into some issue While creating the Analysis Grid node, the points required from the Generate Test Points from HBZones node come out as a function for some reason. How can I unzip the function to get the points? Please see attached ![Honeybee_tutorial%201](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/7/f7015433bb826779882aef608b13db14d322e5a7.png) ![Screenshoot%201](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/8/c/8ca4f041933f954354f4d328619016f81a6b9203.jpeg) ---
**Author:** ![stillgotme](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@stillgotme](https://forum.dynamobim.com/u/stillgotme)\ **Post date:** [November 18, 2019, 1:24am UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/2 "2019-11-18T01:24:49Z")
from your screenshot, you have missing required input from the “Generate Test Points from HBZones” node. All of the outputs are generating a function instead of actual output ---
**Author:** ![rsolomonV6](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@rsolomonV6](https://forum.dynamobim.com/u/rsolomonV6)\ **Post date:** [November 20, 2019, 10:42pm UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/3 "2019-11-20T22:42:08Z")
@stillgotme thank you for your help, I missed the grid size indeed. Is there a chance you can look at this, please? I think I didn’t instal Radiance correctly, I will try to reinstall it The Run Simulation node comes out with an error > ERROR: > Failed to load the results form an empty file: C:\Sim1\Sim 1\gridbased\result\Sim 1.ill > Double check inputs and outputs and make sure everything is run correctly. > > If you think this is a bug submit an issue on github. > [Issues · ladybug-tools/honeybee-dynamo · GitHub](https://github.com/ladybug-tools/honeybee-dynamo/issues) > and include below error message: > > Traceback (most recent call last): > File “”, line 41, in > File “C:\Users\Rodion\AppData\Roaming\Dynamo\Dynamo Revit\2.0\packages\Honeybee\extra\honeybee\radiance\recipe\pointintime\gridbased.py”, line 282, in results > analysisGrid.set\_values\_from\_file( > File “C:\Users\Rodion\AppData\Roaming\Dynamo\Dynamo Revit\2.0\packages\Honeybee\extra\honeybee\radiance\analysisgrid.py”, line 261, in set\_values\_from\_file > raise EmptyFileError(file\_path) > EmptyFileError: Failed to load the results form an empty file: C:\Sim1\Sim 1\gridbased\result\Sim 1.ill > Double check inputs and outputs and make sure everything is run correctly. ![Sim%201](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/4/c/4c3ffd336fb2dd4f0372b64ef286947058a4ce05.png) ---
**Author:** ![stillgotme](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@stillgotme](https://forum.dynamobim.com/u/stillgotme)\ **Post date:** [November 21, 2019, 1:37am UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/4 "2019-11-21T01:37:30Z")
> [@rsolomonV6](#): > > ERROR: > Failed to load the results form an empty file: C:\Sim1\Sim 1\gridbased\result\Sim 1.ill > Double check inputs and outputs and make sure everything is run correctly. is the file currently present? is that file corrupted or so? i believe this is the file that is causing your error. ---
**Author:** ![rsolomonV6](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@rsolomonV6](https://forum.dynamobim.com/u/rsolomonV6)\ **Post date:** [November 21, 2019, 6:55pm UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/5 "2019-11-21T18:55:18Z")
@stillgotme the file is there yes, so not sure what the issue is I have this error when installing Radiance for some reason even in C:\Radiance ![File%20Path%20to%20long](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/6/1/612e8923de57561968624adc4626e53a0bea964a.jpeg) ---
**Author:** ![stillgotme](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@stillgotme](https://forum.dynamobim.com/u/stillgotme)\ **Post date:** [November 22, 2019, 1:03am UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/6 "2019-11-22T01:03:38Z")
did you enable long pathing for your machine? if not just install it at a default directory? ---
**Author:** ![rsolomonV6](https://avatars.discourse-cdn.com/v4/letter/r/6bbea6/32.png) [@rsolomonV6](https://forum.dynamobim.com/u/rsolomonV6)\ **Post date:** [November 22, 2019, 1:30pm UTC](https://forum.dynamobim.com/t/honeybee-tutorial/43269/7 "2019-11-22T13:30:41Z")
@stillgotme Thank you for help, I have the long path activated but the error still pops up. After some research, windows apparently doesn’t supports it. I have installed it by default, which worked without the error. But still had same issue. I found this article where it says Radiance has an issue with C:\Program Files\Radiance - white space so under default option I changed to C:\Radiance. And worked > **[Failed to load results from an empty file](https://discourse.ladybug.tools/t/failed-to-load-results-from-an-empty-file/3968/2)** > > This is happening because Radiance cannot find rayinit.cal file and the reason for that is most of the time installing Radiance under C:\\Program Files\\Radiance instead of C:\\Radiance. That white space between Program and Files is not appreciate by... ![Worked](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/4/0/4028c4a51c62213d41a11e1e42b206e52fa7f76b.jpeg)