i have take a sample project using crystal report,i don't know what version..
then i try it at my PC.i have using crystal report version 9.2.2.634

i've got this error :

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Line 20: Class Crystal.CrystalReport of control crpt was not a loaded control class.
Line 23: The property name _ExtentX in crpt is invalid.
Line 24: The property name _ExtentY in crpt is invalid.
Line 25: The property name _Version in crpt is invalid.
Line 26: The property name PrintFileLinesPerPage in crpt is invalid.
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pls anyone help me....
it's very important....
plss guru....