My Jupyter Notebook has the following code to upload an image to Colab:
from google.colab import files
uploaded = files.upload()
I get prompted
Am assuming you might not have written the file from memory?
try the below code after the upload:
with open("wash care labels", 'w') as f:
f.write(uploaded[uploaded.keys()[0]])
replace "wash care labels.xx" with your file name. This writes the file from memory. then try calling the file.
Hope this works for you.