Help to understand error - raw transaction

I do not understand why for me it is impossible to submit a raw transaction. Every time I try an error appens. And I am sure to do the best. The error:

Command failed: transaction submit Error: Error while submitting tx: ShelleyTxValidationError ShelleyBasedEraMary (ApplyTxError [UtxowFailure (MissingVKeyWitnessesUTXOW (WitHashes (fromList [KeyHash “c657603872b36f9d283aa12db8ea91315594ac8733d16f60db40b6c4”])))])

use coincashew guide… step 18.9

18.9 Send a simple transaction example

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There is this suggestion by the error. Yes I followed the guide similar to this. I will follow this step later. Thanks. If you understand this simple error message please help. Thanks.

check this

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Thanks Alex

Thanks Alex I tryed to make all the best. Every commands are perfectly compiled with and without variables (real values), I checked all!! I noticed that there a re a lot of people abandoning this minting assett procedure. It is very very raw at the moment. The verification keys are ok the signin keys are ok. Everything is ok but the submission doesn’t work. The node is fully working and the query is perfect. I followed all tutorials out there, all speps are very ok! But the errors wake ever up!
Is it a way to make it by a GUI interface?

Solved. As too often appens there are misunderstanding messages from errors. I checked all the amounts. There are errors on tutorials that take us out of the road. Tutorials are very usefull but we have to check the code inside of them. Sometimes there are “amount” errors. The “expr” must be perfectly calculated! Thanks.