Error after installing qgis-dev

[Darek Bobak]

After installing (also after a fresh install) qgis-dev outputs the followinge error:

Oops, looks like an error loading QGIS.

Details:

Could not load qgis_app.dll
Windows Error: nie można odnaleźć określonego modułu (cannot find the module specified)

Check: C:\OSGEO4W\bin\qgis-dev-bin.env for correct environment paths

The qgis_app.dll is in the path specified in the env file.

[jef]

Not reproducable in a windows 10 sandbox.

[Darek Bobak]

It seems to be problem of calling proj_8_0.dll somewhere. The library does not exist, instead there is proj_8_1.dll in c:\OSGeo4W64\apps\proj-dev\bin\. After renaming the proj_8_1.dll to proj_8_0.dll, QGIS starts without problems.

[jef]

Ok, so this is not about the testing repository. The proj and gdal nightlies are still active there, while the qgis-dev nightlies were disabled. Current master needs newer dependencies than available in the current repository. qgis-dev is available in the testing repository (but there with released proj 8 and gdal 3.2 and not nightlies). Use the released version or the testing repo.

[chau]

Hi jef, I have the same issue and I don't quite understand your last post.

What is the "testing repository" and how do I use it, if I cannot use qgis-dev?

[jef]

Replying to chau:

What is the "testing repository" and how do I use it, if I cannot use qgis-dev?

​https://lists.osgeo.org/pipermail/qgis-user/2021-February/048137.html

[chau]

Sorry, I must have missed that mail. Thank you for referring me to it.