A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.

Y

yuxiAuthor

Associate

Thank you!!!

Andrew Neil

Super User

You're welcome.

It would be helpful to give your posts a more descriptive title than just a part number - give some idea what your post is about.

Please see the posting tips here:

https://community.st.com/t5/community-guidelines/how-to-write-your-question-to-maximize-your-chances-to-find-a/ta-p/575228

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.

Tesla DeLorean

Guru

This might relate to how you installed Keil, and where the C:\Keil5\ARM\Packs directory exists.

Things like non-English/Western characters in file names and paths. Spaces in paths. Directories on network, or virtual drives? Microsoft OneDrive ? Desktop ?

A typical working install would have

C:\Keil5\ARM\Packs\.Download

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