Hi @Nassim Hasbani ,
Welcome to Microsoft Q&A!
The error means that the CrystalDecisions.VSDesigner.dll is a x64 dll file, but the deployment project you build is in x86 target platform.
Although your platform target is Any CPU, it is impossible to build x64 and x86 in one project at the same time.
You need to check your references and ensure that the CrystalDecisions.VSDesigner.dll supports 32bit.
Or you can try to change your platform target to x64.
Sincerely,
Anna
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