Test/standalone/test2.cs(9,14): error CS0101: The namespace `global::' already contains a definition for `Test' Test/standalone/test.cs(9,14):: `Test', name of symbol related to previous error Test/standalone/test3.cs(9,14): error CS0101: The namespace `global::' already contains a definition for `Test' Test/standalone/test.cs(9,14):: `Test', name of symbol related to previous error Test/standalone/test4.cs(6,14): error CS0101: The namespace `global::' already contains a definition for `Test' Test/standalone/test.cs(9,14):: `Test', name of symbol related to previous error