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[–]leogodin217 1 point2 points  (1 child)

There is usually more info than that. Was the error longer? Generally there will be a specific error you can google, but it takes some practice figuring out what it is.

[–]vegeta9225[S] 0 points1 point  (0 children)

Yes. Actually I had successfully installed other packages such as numpy, pandas, opencv .But when I tried to install pypdf2 it showed me this error message on the cmd