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Compiler Warning (Level 1) C4742
Error Message'var' has different alignment in 'file1' and 'file2': number and number
An external variable that was referenced or defined in two files has different alignment in those files. This warning is emitted when compiler finds that __alignof for the variable in file1 differs from __alignof for the variable in file2. This can be caused by using incompatible types when declaring variable in different files, or by using non-matching #pragma pack in different files.
To resolve this warning, either use the same type definition or use different names for the variables.
For more information, seeand .