# \[Newbie Question!\] Error When Running Example Notebook to Load Data **URL:** \ **Category:** Data Science\ **Created:** [December 24, 2021, 7:17am UTC](https://forum.numer.ai/t/newbie-question-error-when-running-example-notebook-to-load-data/4675 "2021-12-24T07:17:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![odeforodds](https://avatars.discourse-cdn.com/v4/letter/o/e9a140/32.png) [@odeforodds](https://forum.numer.ai/u/odeforodds)\ **Post date:** [December 24, 2021, 7:17am UTC](https://forum.numer.ai/t/newbie-question-error-when-running-example-notebook-to-load-data/4675/1 "2021-12-24T07:17:01Z")
Hi guys, this is my first time trying to get involved in the numerai tournament. I have tried and downloaded the example script from the numerai main website. I was able to download the dataset which is as big as 1 Gigabytes but failed to load it into dataframe. ## I installed the required libraries and ran the code below: napi = NumerAPI() current\_round = napi.get\_current\_round(tournament=8) # tournament 8 is the primary Numerai Tournament # read in all of the new datas # tournament data and example predictions change every week so we specify the round in their names # training and validation data only change periodically, so no need to download them over again every single week napi.download\_dataset(“numerai\_training\_data.parquet”, “numerai\_training\_data.parquet”) ## df = pd.read\_parquet(‘numerai\_training\_data.parquet’) df.head() and get the error below: 2021-12-24 07:06:39,275 INFO numerapi.utils: target file already exists 2021-12-24 07:06:39,289 ERROR numerapi.utils: deleting file and restarting numerai\_training\_data.parquet: 1.01GB [00:32, 30.9MB/s] OSError Traceback (most recent call last) in () 7 # training and validation data only change periodically, so no need to download them over again every single week 8 napi.download\_dataset(“numerai\_training\_data.parquet”, “numerai\_training\_data.parquet”) ----\> 9 df = pd.read\_parquet(‘numerai\_training\_data.parquet’) 10 df.head() 7 frames /usr/local/lib/python3.7/dist-packages/pyarrow/error.pxi in pyarrow.lib.check\_status() ## OSError: Corrupt snappy compressed data. This was executed in google colab (I am using M1 Mac) after I ran pip install on all the requirements (there was some version conflicts highlights but I doubt this is the reason). Sorry for the long question but would anybody be able to guide me on this? I really wanted to get started into this journey. Thank you so much! \*\*\* Edit Note \*\*\* This is resolved by ignoring all the version stated in requirements.txt and just install all of them as latest version. ---
**Author:** ![mic](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.numer.ai/mic/32/2949_2.png) [@mic](https://forum.numer.ai/u/mic)\ **Post date:** [December 24, 2021, 6:59pm UTC](https://forum.numer.ai/t/newbie-question-error-when-running-example-notebook-to-load-data/4675/2 "2021-12-24T18:59:39Z")
Why do you think the version conflicts are unrelated? I remember hearing about some having problems with an error message about a corrupt parquet file a few weeks ago. I don’t know but maybe related? You could also try asking on the support channel in chat > **[Numerai Community](https://community.numer.ai/channel/support)** ---
**Author:** ![odeforodds](https://avatars.discourse-cdn.com/v4/letter/o/e9a140/32.png) [@odeforodds](https://forum.numer.ai/u/odeforodds)\ **Post date:** [December 25, 2021, 2:56am UTC](https://forum.numer.ai/t/newbie-question-error-when-running-example-notebook-to-load-data/4675/3 "2021-12-25T02:56:08Z")
Hi Mic, Thank you for pointing me to the support channel. I will update the thread here if the solution is found. _ **Edit** _ This is finally resolved after I install all packages to their latest version. Big thanks to shatteredx for the advice!