# Error for compiling input files

**URL:** <https://community.geodynamics.org/t/error-for-compiling-input-files/2712>\
**Category:** ASPECT\
**Created:** [December 5, 2022, 10:01pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712 "2022-12-05T22:01:43Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![chameerasilva](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/chameerasilva/32/1160_2.png) [@chameerasilva](https://community.geodynamics.org/u/chameerasilva)\
**Post date:** [December 5, 2022, 10:01pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/1 "2022-12-05T22:01:43Z")

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Hi everyone,

I was using aspect in a Ubuntu virtual machine from deal-ii website and able to make simple 3d-rift model by updating the continental-extension cookbook.Recently I installed aspect locally in my laptop (both 2.5-pre and 2.4), but when i try to run the same input file(attached here), it gives me following errors(figures attached). By the way, i can run cookbooks in both aspect2.5-pre and 2.4 without any errors. Could you please help me to figure out the error?  
Thanks in advance,  
Best,  
Chameera  
[rift\_3d.prm](https://community.geodynamics.org/uploads/short-url/tONwkFA614VvZTzD7nkpE1PNKTc.prm) (13.0 KB)

 ![error_aspect2_5-pre](https://canada1.discourse-cdn.com/flex036/uploads/geodynamics/original/2X/c/cf1f794f6b66b9b0768bfd5f193459975acf3957.png)  
 ![erroraspect2-4](https://canada1.discourse-cdn.com/flex036/uploads/geodynamics/original/2X/d/d797b7cf3abe874472b58d2e3e66f15f4ad39d65.png)  
 ![ubuntu_deallvm](https://canada1.discourse-cdn.com/flex036/uploads/geodynamics/original/2X/3/376abc75aa68705c6c3988d3be13b73165c5136b.png)

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**Author:** ![jbnaliboff](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jbnaliboff](https://community.geodynamics.org/u/jbnaliboff)\
**Post date:** [December 5, 2022, 10:23pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/2 "2022-12-05T22:23:47Z")

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Dear Chameera,

Welcome and thank you for posting your question to the forum!

At some point (summer 2022?) we removed the `Reference viscosity` parameter as an input option, and now automatically determine this value internally within ASPECT.

I think you must be using a version of the master branch on your laptop that that change merged, while the version on your virtual machine must not yet have the change committed?

In any case, the solution is to simply remove that parameter from your prm file.

Thanks again for posting to the forum, and please let us know if you have any further questions.

Cheers,  
John

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**Author:** ![chameerasilva](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/chameerasilva/32/1160_2.png) [@chameerasilva](https://community.geodynamics.org/u/chameerasilva)\
**Post date:** [December 5, 2022, 10:27pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/3 "2022-12-05T22:27:26Z")

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Hi naliboff,  
Yep. It is working now !. Thank you very much.  
Best,  
Chameera

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**Author:** ![123321-qwojfdnas](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/123321-qwojfdnas/32/1284_2.png) [@123321-qwojfdnas](https://community.geodynamics.org/u/123321-qwojfdnas)\
**Post date:** [February 16, 2023, 9:11am UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/4 "2023-02-16T09:11:46Z")

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I also wanted to ask about that. I was lucky to find someone like me. And found a solution. Thank you very much.

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**Author:** ![gokcal](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/gokcal/32/1784_2.png) [@gokcal](https://community.geodynamics.org/u/gokcal)\
**Post date:** [January 19, 2024, 1:39pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/5 "2024-01-19T13:39:01Z")

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Dear jbnaliboff,

I just start for looking any solution on this issue then found this. Thank you very much.

Sincerely,

Gökhan.

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**Author:** ![jbnaliboff](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jbnaliboff](https://community.geodynamics.org/u/jbnaliboff)\
**Post date:** [January 19, 2024, 8:09pm UTC](https://community.geodynamics.org/t/error-for-compiling-input-files/2712/6 "2024-01-19T20:09:52Z")

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@gokcal My pleasure, thank you for checking on the forum!