Keep getting "invalid token" errors in C#

I've spent the last few days trying to learn the C# language, but Visual C# 2008 keeps saying "invalid token" when my syntax is perfectly fine. Here is my source code: Console.WriteLine("Initializing...");             string path = "startup";             private Hashtable text = new Hashtable();             text.Add("startup", "Please type a command. For a list of available commands, type .");             Console.WriteLine("Start up complete.");             while (true)             {                 string info = text[path].ToString();                 Console.WriteLine(info);                 string comm = Console.ReadLine();                 if (comm == "help")                 {                     Console.Writeline("...");                 }             } The main thing it keeps rejecting are the parentheses. I've even tried removing them, to no avail. I would vastly appreciate some help.

Question by dungeon runner 8 years ago  |  last reply 8 years ago


ERROR MESSAGE IN NCSTUDIO FOR CNC

My name is Joel Chidi. Thanks for having me in this forum. I am super grateful for the opportunity.I am a furniture maker. I have a CNC 3 axis machine,I generated a basic profile toolpath, to cut simple 16mm plywood but when i uploaded it to ncstudio and automated it, the CNC was not moving. i clicked on F9 and i got the error message "line 0): invalid token. PLEASE WHAT COULD BE THE PROBLEM? because i followed through, every step that was explained in the instructable manual. I will be so glad to hear from forumites. THANKSfrom your expectant and anxious friend JOEL CHIDII attached the screenshot from the monitor if that will help.

Question by joelchidi 6 weeks ago  |  last reply 6 weeks ago


Need help this fix arduino the error code please ?

Im still beginner in arduino and i dont have any tutor to ask for ,i put the spi and mfrc522 library already ,please help me fix this error The copy error messages Arduino: 1.8.4 (Windows 7), Board: "Arduino/Genuino Uno" sketch_sep10a_teqj:10: error: 'MIFARE_Key' in 'class MFRC522' does not name a type MFRC522::MIFARE_Key key;           ^ sketch_sep10a_teqj:13: error: array must be initialized with a brace-enclosed initializer byte keyA[6] = (0x38,0xf5,0x86,0x03,0x3c,0x2a);  //KeyA                                               ^ sketch_sep10a_teqj:21: error: 'mfrc522' does not name a type mfrc522.PCD_Init()://Init MFRC522 card ^ C:\Users\Muhammad Adli\Documents\Arduino\sketch_sep10a_teqj\sketch_sep10a_teqj.ino: In function 'void loop()': sketch_sep10a_teqj:27: error: invalid use of member function (did you forget the '()' ?)    Serial.begin = "*";                 ^ sketch_sep10a_teqj:28: error: 'class MFRC522' has no member named 'PICC_IsNewCardPresent'    if ( ! mfrc522.PICC_IsNewCardPresent()) {                   ^ sketch_sep10a_teqj:35: error: 'class MFRC522' has no member named 'PICC_ReadCardSerial'    if (! mfrc522.PICC_ReadCardSerial()                  ^ sketch_sep10a_teqj:36: error: expected ')' before '}' token }{ ^ sketch_sep10a_teqj:36: error: expected primary-expression before '}' token C:\Users\Muhammad Adli\Documents\Arduino\sketch_sep10a_teqj\sketch_sep10a_teqj.ino: At global scope: sketch_sep10a_teqj:36: error: expected unqualified-id before '{' token }{   ^ sketch_sep10a_teqj:48: error: 'Serial' does not name a type Serial.printIn(); ^ sketch_sep10a_teqj:49: error: 'Serial' does not name a type Serial.print(PROGMEM(*Card UID: *)); ^ sketch_sep10a_teqj:50: error: expected constructor, destructor, or type conversion before '(' token printHEX(mfrc522.uid.uidByte, mfrc522.uid.size);          ^ sketch_sep10a_teqj:52: error: 'Serial' does not name a type Serial.printIn(); ^ sketch_sep10a_teqj:53: error: 'Serial' does not name a type Serial.print(PROGMEM("PICC type: *")); ^ sketch_sep10a_teqj:54: error: 'PICC_Type' in 'class MFRC522' does not name a type MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak);           ^ sketch_sep10a_teqj:55: error: 'Serial' does not name a type Serial.printIn(mfrc522.PICC_GetTypeName(piccType)); ^ sketch_sep10a_teqj:58: error: expected unqualified-id before 'if' if (    piccType != MFRC522::PICC_TYPE_MIFARE_MINI ^ sketch_sep10a_teqj:64: error: expected unqualified-id before 'return'              return;              ^ sketch_sep10a_teqj:68: error: 'StatusCode' in 'class MFRC522' does not name a type MFRC522::StatusCode status;           ^ sketch_sep10a_teqj:72: error: expected unqualified-id before 'for'              for (byte i = 0; i < MFRC522::MF_KEY_SIZE; i++)              ^ sketch_sep10a_teqj:72: error: 'i' does not name a type              for (byte i = 0; i < MFRC522::MF_KEY_SIZE; i++)                               ^ sketch_sep10a_teqj:72: error: 'i' does not name a type              for (byte i = 0; i < MFRC522::MF_KEY_SIZE; i++)                                                         ^ sketch_sep10a_teqj:78: error: 'Serial' does not name a type Serial.print (PROGMEM("Authenticating with key A...: )"); ^ sketch_sep10a_teqj:79: error: 'status' does not name a type                status = (MFRC522::StatusCode) mfrc522.PCD_Authenticate(MFRC522 ::                ^ sketch_sep10a_teqj:81: error: expected unqualified-id before 'if' if (status != MFRC522::STATUS_OK) { ^ sketch_sep10a_teqj:88: error: expected unqualified-id before 'else' else ^ sketch_sep10a_teqj:92: error: 'Serial' does not name a type    Serial.print(PROGMEM("Reading data from block "));    ^ sketch_sep10a_teqj:93: error: 'Serial' does not name a type    Serial.printIn(blockNoStaff);    ^ sketch_sep10a_teqj:94: error: 'status' does not name a type    status = (MFRC522::StatusCode) mfrc522.MIFARE_Read(blockNoStaff, buffer, &size;);    ^ sketch_sep10a_teqj:95: error: expected unqualified-id before 'if'    if (status != MFRC522::STATUS_OK) {    ^ sketch_sep10a_teqj:100: error: expected unqualified-id before 'for' for (byte i = 0; i <= 15; i++) { ^ sketch_sep10a_teqj:100: error: 'i' does not name a type for (byte i = 0; i <= 15; i++) {                   ^ sketch_sep10a_teqj:100: error: 'i' does not name a type for (byte i = 0; i <= 15; i++) {                            ^ sketch_sep10a_teqj:106: error: 'Serial' does not name a type Serial.print(PROGMEM("Raw Data in block")); ^ sketch_sep10a_teqj:107: error: 'Serial' does not name a type Serial.print(blockNoStaff); ^ sketch_sep10a_teqj:108: error: 'Serial' does not name a type Serial.printIn(PROGMEM(":")); ^ sketch_sep10a_teqj:109: error: expected constructor, destructor, or type conversion before '(' token printHex(buffer, 16);          ^ sketch_sep10a_teqj:112: error: expected constructor, destructor, or type conversion before '(' token decode(byte_serial, byte_nostaf, byte_key);        ^ sketch_sep10a_teqj:113: error: 'Serial' does not name a type Serial.printIn(" "); ^ sketch_sep10a_teqj:114: error: 'Serial' does not name a type Serial.printIn("No Staf after decode: "); ^ sketch_sep10a_teqj:115: error: expected constructor, destructor, or type conversion before '(' token printIn(byte_nostaf, 10);         ^ sketch_sep10a_teqj:125: error: 'mfrc522' does not name a type mfrc522.PICC_HaltA(); ^ sketch_sep10a_teqj:127: error: 'mfrc522' does not name a type mfrc522.PCD_StopCryptol(); ^ sketch_sep10a_teqj:128: error: expected declaration before '}' token } ^ exit status 1 'MIFARE_Key' in 'class MFRC522' does not name a type This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences. THIS the code: #include #include #define  RST_PIN     9   // MFRC Reset Pin #define  SS_PIN      10  // MFRC SPI Pin MFRC522 mfrc522(SS_PIN, RST_PIN); //Create MFRC522 instance. MFRC522::MIFARE_Key key; byte blockNoStaf = 10; byte keyA[6] = (0x38,0xf5,0x86,0x03,0x3c,0x2a);  //KeyA String nostaf; String serial; byte byte_nostaf[16]; byte byte_serial[4]; byte byte_key[4] = {0xb5,0xcf,0x60,0x71}; mfrc522.PCD_Init()://Init MFRC522 card   Serial.printIn(("Sedia untuk imbas kad staffUSM"));   // put your setup code here, to run once:   void loop() {   Serial.begin = "*";   if ( ! mfrc522.PICC_IsNewCardPresent()) {     //TODO: RED LED ON indicate error     //TODO: Display error at LCD Display     return;   }   // 2 Select one of the cards   if (! mfrc522.PICC_ReadCardSerial() }{ //TODO: RED LED ON indicate error //TODO: Display error at LCD Display return; //get the card UID for (byte i = 0; i < mfrc522.uid.size; i++)(       Serial += String(mfrc522.uid.uidByte[i], HEX);       byte-Serial[i] = mfrc522.uid.uidByte[i];   } // 3 show some detail of the PICC (hat is: the tag /card) Serial.printIn(); Serial.print(PROGMEM(*Card UID: *)); printHEX(mfrc522.uid.uidByte, mfrc522.uid.size); Serial.printIn(); Serial.print(PROGMEM("PICC type: *")); MFRC522::PICC_Type piccType = mfrc522.PICC_GetType(mfrc522.uid.sak); Serial.printIn(mfrc522.PICC_GetTypeName(piccType)); //3.1 Check for compatibility if (    piccType != MFRC522::PICC_TYPE_MIFARE_MINI         &&  piccType != MFRC522::PICC_TYPE_MIFARE_IK         &&  piccType != MFRC522::PICC_TYPE_MIFARE_4K) (             Serial.printIn(PROGMEM("This sample only works with MIFARE Classic cards.*"));             //TODO: RED LED ON indicate error             //TODO: Display error at LCD Display             return; MFRC522::StatusCode status; byte buffer[18]; byte size = sizeof(buffer);             for (byte i = 0; i < MFRC522::MF_KEY_SIZE; i++)             key.keyByte[i] = keyA[i]; // 4 Authenticate using key A Serial.print (PROGMEM("Authenticating with key A...: )");               status = (MFRC522::StatusCode) mfrc522.PCD_Authenticate(MFRC522 ::                        PICC_CMD_MF_AUTH_KEY_A, blockNoStaff, &key;, &(mfrc522.uid)); if (status != MFRC522::STATUS_OK) { Serial.print (PROGMEM("PCD_Authenticate() failed: "));   Serial.printIn(mfrc522.GetStatusCodeName(status));   //TODO: RED LED for error   //TODO: Display Error on LCD   return; } else   Serial.printIn("success");   //  5 Read data from the block   Serial.print(PROGMEM("Reading data from block "));   Serial.printIn(blockNoStaff);   status = (MFRC522::StatusCode) mfrc522.MIFARE_Read(blockNoStaff, buffer, &size;);   if (status != MFRC522::STATUS_OK) {   Serial.print(PROGMEM("MIFARE_Read()"" failed "));     Serial.printIn(mfrc522.GetStatusCodeName(status));   } for (byte i = 0; i <= 15; i++) { nostaf += String(buffer[i], HEX);   byte_nostaf[i] = buffer[i]; } Serial.print(PROGMEM("Raw Data in block")); Serial.print(blockNoStaff); Serial.printIn(PROGMEM(":")); printHex(buffer, 16); // 5 decode data dalam kad decode(byte_serial, byte_nostaf, byte_key); Serial.printIn(" "); Serial.printIn("No Staf after decode: "); printIn(byte_nostaf, 10); // 6 hantar nostaf ke frapi guna ethernet modul // 7 papar result // LED Hijau success // LED Merah failed // Papar result pada LCD // Halt PICC mfrc522.PICC_HaltA(); // Stop encryption on PCD mfrc522.PCD_StopCryptol(); } void printHex(byte *buffer, byte buffersize) for (byte i = 0; i < buffersize; i++;) { Serial.print(buffer[i] < 0 * 10 ? " 0 " : " ");   Serial.print(buffer[i], HEX); } } void printDec(byte *buffer, byte bufferSize) {   for (byte i = 0; i < bufferSize; i++;) {     //  Serial.print(buffer[i] < 0*10 ? " 0 " : " ");     Serial.print(buffer[i], DEC);   } } void printBin(byte *buffer, byte bufferSize) {   for (byte i = 0; i < bufferSize; i++) {     Serial.print(buffer[i], BIN); Serial.print(" ");   } } void printIn(byte *buffer, byte bufferSize) {   for (byte i = 0; i < bufferSize; i++) {     Serial.write(buffer[i]); Serial.print(" ");   } } void decode (byte *serial, byte *nostaf, byte *key) {   int j = 0;   for (int i = 0; i <= 15; i++) {     j = i % 4;     int a = serial[j] ^ key[j];     nostaf[i] = a ^ nostaf[i];   } }

Question by rosedgonzo 1 year ago  |  last reply 1 year ago