# Error while testing Qopen

**URL:** <https://discourse.obspy.org/t/error-while-testing-qopen/1352>\
**Category:** Related: Qopen\
**Created:** [January 10, 2022, 12:29am UTC](https://discourse.obspy.org/t/error-while-testing-qopen/1352 "2022-01-10T00:29:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ccastelblanco](https://discourse.obspy.org/user_avatar/discourse.obspy.org/ccastelblanco/32/500_2.png) [@ccastelblanco](https://discourse.obspy.org/u/ccastelblanco)\
**Post date:** [January 10, 2022, 12:29am UTC](https://discourse.obspy.org/t/error-while-testing-qopen/1352/1 "2022-01-10T00:29:56Z")

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Greetings,

I recently installed Qopen, but when I try to execute the command “qopen-runtests”, I got the following error:

Traceback (most recent call last):  
File “”, line 1, in   
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\qopen\__init_\_.py”, line 3, in   
from qopen.core import run  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\qopen\core.py”, line 42, in   
import obspy  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\__init_\_.py”, line 39, in   
from obspy.core.utcdatetime import UTCDateTime # NOQA  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\core\__init_\_.py”, line 124, in   
from obspy.core.utcdatetime import UTCDateTime # NOQA  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\core\utcdatetime.py”, line 27, in   
from obspy.core.util.deprecation\_helpers import ObsPyDeprecationWarning  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\core\util\__init_\_.py”, line 27, in   
from obspy.core.util.base import (ALL\_MODULES, DEFAULT\_MODULES,  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\core\util\base.py”, line 36, in   
from obspy.core.util.misc import to\_int\_or\_zero, buffered\_load\_entry\_point  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\obspy\core\util\misc.py”, line 214, in   
loadtxt(np.array([0]), ndmin=1)  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\numpy\lib\npyio.py”, line 1086, in loadtxt  
ncols = len(usecols or split\_line(first\_line))  
File “C:\Users\carli\anaconda3\envs\qenv\lib\site-packages\numpy\lib\npyio.py”, line 977, in split\_line  
line = line.split(comment, 1)[0]  
AttributeError: ‘numpy.int32’ object has no attribute ‘split’

I appreciate your help,

Carlos

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**Author:** ![trichter](https://discourse.obspy.org/user_avatar/discourse.obspy.org/trichter/32/226_2.png) [@trichter](https://discourse.obspy.org/u/trichter)\
**Post date:** [January 10, 2022, 1:23pm UTC](https://discourse.obspy.org/t/error-while-testing-qopen/1352/2 "2022-01-10T13:23:30Z")

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Hi Carlos,

this is an error in obspy. See [Incompatibility with numpy 1.22 · Issue #2912 · obspy/obspy · GitHub](https://github.com/obspy/obspy/issues/2912)

As a work-around please install ObsPy’s dev version or downgrade numpy.

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<div class="post-metadata">

**Author:** ![ccastelblanco](https://discourse.obspy.org/user_avatar/discourse.obspy.org/ccastelblanco/32/500_2.png) [@ccastelblanco](https://discourse.obspy.org/u/ccastelblanco)\
**Post date:** [January 10, 2022, 4:52pm UTC](https://discourse.obspy.org/t/error-while-testing-qopen/1352/3 "2022-01-10T16:52:57Z")

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Thank you Tom,

I downgraded numpy to 1.21.5 version and it worked.