---
title: "oft-calc related bugs"
url: "https://openforis.support/questions/93/oft-calc-related-bugs"
tags: ["geospatialtoolkit"]
status: "answered"
score: 0
answer_count: 1
asked: "2014-11-11T16:50:39"
last_activity: "2014-11-11T18:22:56"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# oft-calc related bugs

Asked by lecrabe on 2014-11-11

1/ I have recently experienced a couple of bugging situation with oft-calc, which were solved by changing the name of the input file. I am wondering what can cause that.

2/ Now I get the error message below and don't know what to do about it. Could anyone advise ?

    Trying to read 1 lines at time  Error in `oft-calc': free(): invalid next size (fast): 0x0868a448  Aborted

Some features of input image :

  - size is 13218, 7768 
  - pixels resolution is 30 meters (0.0002725 degrees)
  - projection is WGS84

 Thanks for help


## Answer (score 0, by Anssi on 2014-11-11)

Link: https://openforis.support/questions/93/oft-calc-related-bugs/94

Many thanks for reporting!

1/ Are you sure you're using the latest version (2.2)? This bug was present in a previous version but should have been fixed now. It was caused by erroneous allocation for space for equation output file name (outfilename.eq).
2/ This is strange. Could you copy and paste the dialog here?

Anssi