I'm trying to enter a coordinate reference system applicable to El Salvador in QGIS Desktop, but it doesn't save the coordinate system. I am currently using version 2.14.7, however, I tried before using version 2.16.3., and the same error occurrs.
QGIS allows me to perform the test with the coordinate system. And then, I apply the changes. No error message was displayed, but when I back and looked for the new coordinate system, it wasn't found.