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1) I tried to define a custom CRS in QGIS without success. I fill all fields and try to change project CRS. (all parameters is good) But I can't find custom CRS in list. I think that this is due to this error. Error

2) This window opens at startup of the program. I tried to install all versions of QGIS from 2.6 to 2.18 and this error didn't disappear. What am I doing wrong?

3) I remove qgis.db and the error message and the error message don't open now. But I still can't define new custom CRS.I fill all fields with this parameters. enter image description here

When I try to change the project CRC I can't find it in list.

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    Welcome to GIS SE! As a new user please take the tour to learn about our focused Q&A format.
    – Midavalo ♦
    May 13, 2017 at 22:52
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    What does the error message say in English?
    – Midavalo ♦
    May 13, 2017 at 22:53
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    "I tried to define a custom CRS in QGIS without success. I fill all fields and try to change project " - what fields did you fill, and what values did you use? Please outline the steps you followed to create your custom CRS. You can edit your question to add more information.
    – Midavalo ♦
    May 13, 2017 at 22:54
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    i think it might be a duplicate of this
    – Steven Kay
    May 14, 2017 at 0:30

1 Answer 1

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Several parameters are stored in qgis.db (sqlite database). It seems your database file was broken. Removing qgis.db not a good idea, you will lost several functionality of QGIS. Try to reinstall QGIS or copy qgis.db from an other machine. qgis.db is in the /usr/share/qgis/resource on a Linux box.

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  • Thanks for answer. Copying qgis.db from other machine helped me!
    – user97177
    May 14, 2017 at 20:58

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