I would like to program a standalone application using C++. In version 3.4 LTR, my program ran fine and I did not receive any notification when running it. However, when I compiled using the qgis library version 3.10.3 LTR, I received the following warnings:
proj_get_authorities_from_database: Cannot find proj.db
proj_create_from_wkt: Cannot find proj.db
proj_create_from_database: Cannot find proj.db
proj_create_from_database: Cannot find proj.db
proj_create_from_database: Cannot find proj.db
Can someone help me?
Best Answer
I have found the
proj.db
file inC:\OSGeo4W64\share\proj
. So I solved the problem by setting environment variablePROJ_LIB=C:\OSGeo4W64\share\proj