# Lambda stack installation error

**URL:** <https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277>\
**Category:** Uncategorized\
**Created:** [November 8, 2019, 5:38pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277 "2019-11-08T17:38:35Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Cesarmen](https://avatars.discourse-cdn.com/v4/letter/c/258eb7/32.png) [@Cesarmen](https://deeptalk.lambda.ai/u/Cesarmen)\
**Post date:** [November 8, 2019, 5:38pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277/1 "2019-11-08T17:38:35Z")

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Errors during lambda stack installation

Err:222 [http://archive.lambdalabs.com/ubuntu](http://archive.lambdalabs.com/ubuntu) bionic/main amd64 libaccinj64-10.0 amd64 10.0.130-0lambda3  
Undetermined Error [IP: 52.218.252.234 80]  
and another  
Fetched 2 270 MB in 35min 2s (1 080 kB/s)  
E: Failed to fetch [http://archive.lambdalabs.com/ubuntu/pool/main/n/nvidia-cuda-toolkit/libaccinj64-10.0\_10.0.130-0lambda3\_amd64.deb](http://archive.lambdalabs.com/ubuntu/pool/main/n/nvidia-cuda-toolkit/libaccinj64-10.0_10.0.130-0lambda3_amd64.deb) Undetermined Error [IP: 52.218.252.234 80]  
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Does anyone know if this error is going to affect my whole installation?

Bests  
Cesar

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<div class="post-metadata">

**Author:** ![Cesarmen](https://avatars.discourse-cdn.com/v4/letter/c/258eb7/32.png) [@Cesarmen](https://deeptalk.lambda.ai/u/Cesarmen)\
**Post date:** [November 8, 2019, 5:42pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277/2 "2019-11-08T17:42:00Z")

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I solved it. Sorry. I just retyped the installation. But anyways, Should I do that twice?

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**Author:** ![analyticascent](https://avatars.discourse-cdn.com/v4/letter/a/b5e925/32.png) [@analyticascent](https://deeptalk.lambda.ai/u/analyticascent)\
**Post date:** [March 23, 2020, 8:34pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277/3 "2020-03-23T20:34:17Z")

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I’m running into a similar problem, so far redoing the installation doesn’t seem to get around this:

```
E: Failed to fetch http://archive.lambdalabs.com/ubuntu/pool/main/n/nvidia-cudnn/libcudnn-dev_7.6.5-0lambda1_amd64.deb Hash Sum mismatch

E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?`

```

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**Author:** ![lambda](https://sea1.discourse-cdn.com/flex019/user_avatar/deeptalk.lambda.ai/lambda/32/599_2.png) [@lambda](https://deeptalk.lambda.ai/u/lambda)\
**Post date:** [May 13, 2020, 9:04pm UTC](https://deeptalk.lambda.ai/t/lambda-stack-installation-error/1277/4 "2020-05-13T21:04:55Z")

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I ran into the same issue with the nvidia-cudnn file. Here’s how to get around this (or other signature problems):  
1.) Open a web browser and paste the URL ending .deb  
2.) Save the file to your computer  
3.) You can now either double-click and install using Ubuntu’s software manager -or- install the .deb from command line

Lambda redefines “dependency nightmare” ☹