Hello @Eloisio Campos ,
Thank you for sharing us the screenshots.
Please first check if some projects reference themselves. For example, controls/forms defined in this project uses other controls defined in the same project. Try to remove this reference(from "References" node in VS Solution Explorer) and rebuild your project.
If you are using a Resources file, please try to replace it with another backup(not damaged) Resources file, re-add the images and check if this works.
Please also double check the References node in Solution Explorer and make sure that all the references are correct.
Feel free to let us know the results.
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