Issue with Marian Server on Colab

[leminhyen2]

Hi, while trying to run server.py. I encountered this issue and couldn't figure out

Future exception was never retrieved
future: <Future finished exception=FileNotFoundError(2, "No such file or directory: 'marian-server'")>
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "server.py", line 65, in run
'--maxi-batch', '100',
File "/usr/local/lib/python3.7/dist-packages/tornado/process.py", line 240, in init
self.proc = subprocess.Popen(*args, **kwargs)
File "/usr/lib/python3.7/subprocess.py", line 800, in init
restore_signals, start_new_session)
File "/usr/lib/python3.7/subprocess.py", line 1551, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'marian-server': 'marian-server'

Traceback (most recent call last):
File "server.py", line 188, in
application = make_app(args)
File "server.py", line 166, in make_app
worker_pool = initialize_workers(services)
File "server.py", line 148, in initialize_workers
source_lang, target_lang, pair_config, models[pair_config['configuration']])
File "server.py", line 23, in init
targetspm=self.service.get('targetspm')
File "/content/Opus-MT/content_processor.py", line 18, in init
self.bpe_source = BPE(BPEcodes)
File "/content/Opus-MT/apply_bpe.py", line 37, in init
firstline = codes.readline()
File "/usr/lib/python3.7/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 54: invalid start byte

[jorgtied]

Looks like marian-server is not available / installed in your colab instance.