I make project code using stm32Cube ide 1.5.0 and same project copy paste with rename workspace and project name. after in new project what i changes similarly changes happed in previous project. please suggest me.

[KS.3]

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[KnarfB]

The IDE has the feature to "copy" by making (virtual) links to files, creating virtual folders, etc.. You might have inadvertently done that.

Clean the project and then close the IDE first, make a deep copy at file system level, open the IDE again and open existing project from file system as needed.

When in doubt, check that for files and folders the file system location is as expected (Properties > Resource > Location)

hth

KnarfB