Colab Lesson 5 Error: "fastai 2.0.18 has requirement fastcore<1.3,>=1.1, but you'll have fastcore 1.3.0 which is incompatible"

Hey again team. I wasn’t getting this error yesterday, is anyone else seeing this error in lesson 5 (Pet Breeds) on Google Colab?

#hide
!pip install -Uqq fastbook
import fastbook
fastbook.setup_book()

throws this error:

ERROR: fastai 2.0.18 has requirement fastcore<1.3,>=1.1, but you'll have fastcore 1.3.0 which is incompatible.

i have tried:

!pip install -Uqq fastbook
!pip install fastcore==1.1 
import fastbook
fastbook.setup_book()

and

!pip install -Uqq fastbook
!pip install fastcore==1.3 
import fastbook
fastbook.setup_book()

but honestly that was a wild stab in the dark.
does anyone have an easy fix for this?

I woke up to the same issue this morning. This is what worked for me:

# Setup Fastai Colab environment
!pip install -Uqq fastbook
!pip install fastcore==1.2
import fastbook
fastbook.setup_book()

You may have to restart your runtime for this to work, then just run this cell again.

1 Like

I had the same issue today - fixed by !pip install fastcore==1.2

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try upgrading fastai to v 2.1

!pip install -U fastai

then

!pip install -Uqq fastbook
import fastbook
fastbook.setup_book()

worked for me

I found that with upgrading to fastai==2.1, I also had to upgrade to torchvision=0.8.1:

#hide
!pip install -U torchvision==0.8.1
!pip install -U fastai==2.1
!pip install -Uqq fastbook
import fastbook
fastbook.setup_book()
1 Like