# Self Trapped Polaron Calculation Error with Optdriver 7

**URL:** <https://discourse.abinit.org/t/self-trapped-polaron-calculation-error-with-optdriver-7/3798>\
**Category:** Response calculations\
**Created:** [January 24, 2026, 7:56pm UTC](https://discourse.abinit.org/t/self-trapped-polaron-calculation-error-with-optdriver-7/3798 "2026-01-24T19:56:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sms](https://discourse.abinit.org/letter_avatar_proxy/v4/letter/s/ecb155/32.png) [@sms](https://discourse.abinit.org/u/sms)\
**Post date:** [January 24, 2026, 7:56pm UTC](https://discourse.abinit.org/t/self-trapped-polaron-calculation-error-with-optdriver-7/3798/1 "2026-01-24T19:56:56Z")

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Hi, I was trying to perform the Self-trapped polaron tutorial from the available tutorial. Previous Ground State and DFPT calculations worked well but while doing computation of a small hole polaron on 3x3x3, 4x4x4, 5x5x5 k/q-grids with long-range Frohlich correction the calculation failed saying -  
Optdriver 7 [which turns on the electron-phonon calculation]  
and, eph\_task 13 [which performs the polaron calculations]

are incompatible. I am using ABINIT-10.0.5 version. Can anyone please guide me what’s the issue here and how it can be solved?

Thanks

[teph4vpq\_4.abo](https://discourse.abinit.org/uploads/short-url/tPs1lmlVO8hIqqcccqa5X7um5vE.abo) (12.5 KB)

[teph4vpq\_4.abi](https://discourse.abinit.org/uploads/short-url/8DH4cTYAcZmuWRH8APRDvc8XHDa.abi) (3.5 KB)

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**Author:** ![vvasilchenko](https://discourse.abinit.org/letter_avatar_proxy/v4/letter/v/2bfe46/32.png) [@vvasilchenko](https://discourse.abinit.org/u/vvasilchenko)\
**Post date:** [June 22, 2026, 2:53pm UTC](https://discourse.abinit.org/t/self-trapped-polaron-calculation-error-with-optdriver-7/3798/2 "2026-06-22T14:53:51Z")

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Greetings,

The polaron module requires at least ABINIT version **[v10.4.3](https://github.com/abinit/abinit/releases/tag/10.4.3)** to be used.

Best,  
VV