# ControlDict issue Error 4
**URL:** https://discourse.paraview.org/t/controldict-issue-error-4/5380
**Category:** ParaView Support
**Created:** [September 18, 2020, 1:04pm UTC](https://discourse.paraview.org/t/controldict-issue-error-4/5380 "2020-09-18T13:04:20Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Reptider](https://discourse.paraview.org/u/Reptider)
#### Post date: [September 18, 2020, 1:04pm UTC](https://discourse.paraview.org/t/controldict-issue-error-4/5380/1 "2020-09-18T13:04:20Z")
Hello. I have the issue “ERROR 4: `/home/nick/OpenFOAM/OpenFOAM-v2006/tutorials/incompressible/icoFoam/elbow\_tri/system/controlDict’ not recognized as a supported file format.” when I press “Apply” in paraView after choice OpenFoamReader. How can I fix this problem?[problem.tar](https://discourse.paraview.org/uploads/short-url/njPe6w1KXjtxj2wRdJGYFUvazTB.tar) (170 KB)
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [September 18, 2020, 1:14pm UTC](https://discourse.paraview.org/t/controldict-issue-error-4/5380/2 "2020-09-18T13:14:39Z")
create an empty file.foam in the main directory and try to open this file instead of openning the control dict file.
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### Author:  [@Reptider](https://discourse.paraview.org/u/Reptider)
#### Post date: [September 18, 2020, 1:40pm UTC](https://discourse.paraview.org/t/controldict-issue-error-4/5380/3 "2020-09-18T13:40:19Z")
I have tried. There is no model. I can’t rotate ortagonal system of vectors in left bottom place. However, the issue has dissapeared from terminal.[problem.tar](https://discourse.paraview.org/uploads/short-url/yK3Pg4Uwt7MkSzbFRKbKyr18x06.tar) (178 KB)
