To Fix Missing or Corrupt qgis_app.dll, download the qgis_app.dll file located on this page.
At the point when an application requires qgis_app.dll, Windows will check the application and framework folders for this .dll file. If the file is missing you may get an error and the application may not work appropriately.
This application has neglected to start because qgis_app.dll was not found. Re-installing the application may fix this issue.
qgis_app.dll Not Found.
Did you know? You may as of now have this file, despite the fact that you are getting .dll errors. That is because the .dll file may have been moved or renamed by another application. Verify whether you as of now have qgis_app.dll on your PC.