Error: VRT already has an alpha band

Hey there people, I created some custom .tif file and would like to serve it with terracotta. However, I get the following error when calling terracotta serve -r {name}.tif

Error message: Traceback (most recent call last): File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 2447, in wsgi_app response = self.full_dispatch_request() File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1952, in full_dispatch_request rv = self.handle_user_exception(e) File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1821, in handle_user_exception reraise(exc_type, exc_value, tb) File "/usr/local/lib/python3.6/dist-packages/flask/_compat.py", line 39, in reraise raise value File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1950, in full_dispatch_request rv = self.dispatch_request() File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1936, in dispatch_request return self.view_functions[rule.endpoint](**req.view_args) File "/usr/local/lib/python3.6/dist-packages/terracotta/server/flask_api.py", line 49, in inner return fun(*args, **kwargs) File "/usr/local/lib/python3.6/dist-packages/terracotta/server/singleband.py", line 152, in get_singleband_preview return _get_singleband_image(keys) File "/usr/local/lib/python3.6/dist-packages/terracotta/server/singleband.py", line 166, in _get_singleband_image image = singleband(parsed_keys, tile_xyz=tile_xyz, **options) File "/usr/lib/python3.6/contextlib.py", line 52, in inner return func(*args, **kwds) File "/usr/local/lib/python3.6/dist-packages/terracotta/handlers/singleband.py", line 45, in singleband tile_size=tile_size, preserve_values=preserve_values File "/usr/local/lib/python3.6/dist-packages/terracotta/xyz.py", line 27, in get_tile_data asynchronous=asynchronous File "/usr/local/lib/python3.6/dist-packages/terracotta/drivers/base.py", line 20, in inner return fun(self, *args, **kwargs) File "/usr/local/lib/python3.6/dist-packages/terracotta/drivers/raster_base.py", line 562, in get_raster_tile result = future.result() File "/usr/lib/python3.6/concurrent/futures/_base.py", line 432, in result return self.__get_result() File "/usr/lib/python3.6/concurrent/futures/_base.py", line 384, in __get_result raise self._exception rasterio.errors.WarpOptionsError: The VRT already has an alpha band, adding a new one is not supported

My .tif file: https://cloudstorage.tu-braunschweig.de/getlink/fiHGTTUZHaDHMjf9tiKBjvLC/ortho.tif

I guess the problem is the creation of my .tif file, probably some bad flags or channels? The map is not displayed in the preview tool. I see the outlines, but not more.

Thanks for your help and best regards, Alex

[laxnpander]

@dionhaefner: Alright, didn’t know that. Thanks for the quick response! I tested a couple of open source tileserver over the past few days and Terracotta is my favourite so far. Really nice work!

[dionhaefner]

Should be fixed on master. Would be nice if you could verify. As I said, reading will be slow, so be patient 😃