Ошибка «Пространство имен не может непосредственно содержать такие члены, как поля или методы» - C#

    using FsuipcSdk;                // Help Studio.NET find Fsuipc class
    
    Fsuipc fsuipc = new Fsuipc();   // Instantiate our Fsuipc object
    
    bool result = false;            // Return boolean for FSUIPC method calls
    int dwFSReq = 0;                // Any version of FS is OK
    int dwOffset = 0x02BC;          // Indicated airspeed memory offset
    int dwSize = 4;                 // Indicated airspeed memory size
    int token = 0;                  // Variable to hold returned token index
    int dwResult = 0;               // Variable to hold returned results
    
    // Optional initialization
    fsuipc.FSUIPC_Initialization();
    
    // Open the connection to FSUIPC (and thus the simulator)
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Open(dwFSReq, ref dwResult);
    
    // Submit a single read request
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Read(dwOffset, dwSize, ref token, ref dwResult);
    
    // Process (actually perform) the request
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Process(ref dwResult);
    
    // Get the returned value
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Get(ref token, ref dwResult);
    
    // Adjust the IAS value as per "FSUIPC for Programmers.doc"
    int ias = dwResult * 128;
        
    // Close the FSUIPC connection
    fsuipc.FSUIPC_Close();

    public void FSUIPC_Initialization()    public bool FSUIPC_Open(int dwFSReq, ref int dwResult);        int SIM_ANY     for any supported by FSUIPC or equivalent   
        int SIM_FS98    FS98
        int SIM_FS2K    FS2000
        int SIM_FS2K2   FS2002
        int SIM_CFS2    CFS2
        int SIM_CFS1    CFS
        int SIM_FLY     Fly! (not supported yet, and no promises implied!    int FSUIPC_Version;     // HIWORD is 1000 x Version Number, minimum 1998
                            // LOWORD is build letter, with a = 1 etc.
    int FSUIPC_FS_Version;  // SIM_FS98, SIM_FS2K etc -- see above        public bool FSUIPC_Read(int dwOffset, int dwSize, ref int Token,
           ref int dwResult)        public bool FSUIPC_Write(int dwOffset, byte param, ref int Token,
            ref int dwResult) 
        public bool FSUIPC_Write(int dwOffset, short param, ref int Token,
            ref int dwResult) 
        public bool FSUIPC_Write(int dwOffset, int param, ref int Token,
            ref int dwResult) 
        public bool FSUIPC_Write(int dwOffset, long param, ref int Token,
            ref int dwResult) 
        public bool FSUIPC_Write(int dwOffset, int dwSize, ref byte[] param,
            ref int Token, ref int dwResult)        public bool FSUIPC_Get(ref int Token, ref byte Result) 
        public bool FSUIPC_Get(ref int Token, ref short Result) 
        public bool FSUIPC_Get(ref int Token, ref int Result) 
        public bool FSUIPC_Get(ref int Token, ref long Result) 
        public bool FSUIPC_Get(ref int Token, int dwSize, ref byte[] Result)using FsuipcSdk;                // Help Studio.NET find Fsuipc class
    
    Fsuipc fsuipc = new Fsuipc();   // Instantiate our Fsuipc object
    
    bool result = false;            // Return boolean for FSUIPC method calls
    int dwFSReq = 0;                // Any version of FS is OK
    int dwOffset = 0x02BC;          // Indicated airspeed memory offset
    int dwSize = 4;                 // Indicated airspeed memory size
    int token = 0;                  // Variable to hold returned token index
    int dwResult = 0;               // Variable to hold returned results
    
    // Optional initialization
    fsuipc.FSUIPC_Initialization();
    
    // Open the connection to FSUIPC (and thus the simulator)
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Open(dwFSReq, ref dwResult);
    
    // Submit a single read request
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Read(dwOffset, dwSize, ref token, ref dwResult);
    
    // Process (actually perform) the request
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Process(ref dwResult);
    
    // Get the returned value
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Get(ref token, ref dwResult);
    
    // Adjust the IAS value as per "FSUIPC for Programmers.doc"
    int ias = dwResult * 128;
        
    // Close the FSUIPC connection
    fsuipc.FSUIPC_Close();using FsuipcSdk;                // Help Studio.NET find Fsuipc class
    
    Fsuipc fsuipc = new Fsuipc();   // Instantiate our Fsuipc object
    
    bool result = false;            // Return boolean for FSUIPC method calls
    int dwFSReq = 0;                // Any version of FS is OK
    int token = 0;                  // Variable to hold returned token index
    int dwResult = 0;               // Variable to hold returned results
    
    // Optional initialization
    fsuipc.FSUIPC_Initialization();
    
    // Open the connection to FSUIPC (and thus the simulator)
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Open(dwFSReq, ref dwResult);
    
    // Set slew mode on (required prior to location writes)
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Write(0x05DC, 1, ref token, ref dwResult);
 
    // Set latitude
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Write(0x0564, 4454206, ref token, ref dwResult);
    result = fsuipc.FSUIPC_Write(0x0560, 901120000, ref token, ref dwResult);
 
    // Set longitude
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Write(0x056C, -991553537, ref token, ref dwResult);
    result = fsuipc.FSUIPC_Write(0x0568, 219480064, ref token, ref dwResult);
 
    // Write the data to FS
    // if result == true then everything worked OK
    result = fsuipc.FSUIPC_Process(ref dwResult);
        
    // Close the FSUIPC connection
    fsuipc.FSUIPC_Close();