VS Arduino - Compile Error with enum variable

Nov 1^st, 2025 at 1:07pm (UTC)

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VS Arduino › Visual Micro › Installation & Troubleshooting › Compile Error with enum variable

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Compile Error with enum variable (Read 1559 times)

Fer Newbies Offline Posts: 5 Location: Buenos Aires Joined: Aug 27^th, 2018	Compile Error with enum variable Jul 1^st, 2019 at 5:03pm	Print Post
	Hi. I am migrating from the Arduino IDE to Visual Micro and encountered the following problem. The following sketch compiles OK in the Arduino IDE: enum umMode { normal, awaken, lowPower, settings }; const byte SET_A_PIN = 6; const byte SET_B_PIN = 7; void setup() { SetUmMode(settings); ConfigUm(); } void loop() { } void ConfigUm() { } void SetUmMode(umMode _umMode) { Serial.print("_umMode = "); Serial.println(_umMode); // DEBUG byte setAState; byte setBState; switch (_umMode) { case normal: setAState = 0; setBState = 0; break; case awaken: setAState = 0; setBState = 1; break; case lowPower: setAState = 1; setBState = 0; break; case settings: setAState = 1; setBState = 1; break; } digitalWrite(SET_A_PIN, setAState); digitalWrite(SET_B_PIN, setBState); } In Visual Micro I get the green check mark saying No issues found, but when I try to build it, I get the following error: Building variant ... Using previously compiled variant Building core ... Building project code ... UM_Config_F.ino: 12:16: error: variable or field 'SetUmMode' declared void UM_Config_F.ino: 12:16: error: 'umMode' was not declared in this scope Error compiling project sources Build failed for project 'UM_Config_F' UM_Config_F.ino: In function void setup() Please, could you help me find the problem? Thanks a lot for your help. Kind regards, Fernando.


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Tim@Visual Micro Administrator Offline Posts: 12201 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Compile Error with enum variable Reply #1 - Jul 1^st, 2019 at 6:30pm	Print Post
	Hi, One of the only differences is that we have not yet implemented the ctags system to determine the correct location for prototypes of functions that use types created in the .ino files. In short this means you need to do what you would do in a c++ file and add the prototype at the location that makes sense. Like this. Notice the "void SetUmMode(umMode _umMode);" prototype with exact same signature as the method is located between the creation of the type and first use. Code (C++) enum umMode { normal, awaken, lowPower, settings }; const byte SET_A_PIN = 6; const byte SET_B_PIN = 7; void setup() { SetUmMode(settings); ConfigUm(); } void loop() { } void ConfigUm() { } void SetUmMode(umMode _umMode); void SetUmMode(umMode _umMode) { Serial.print("_umMode = "); Serial.println(_umMode); // DEBUG byte setAState; byte setBState; switch (_umMode) { case normal: setAState = 0; setBState = 0; break; case awaken: setAState = 0; setBState = 1; break; case lowPower: setAState = 1; setBState = 0; break; case settings: setAState = 1; setBState = 1; break; } digitalWrite(SET_A_PIN, setAState); digitalWrite(SET_B_PIN, setBState); }


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Fer Newbies Offline Posts: 5 Location: Buenos Aires Joined: Aug 27^th, 2018	Re: Compile Error with enum variable Reply #2 - Jul 2^nd, 2019 at 1:56pm	Print Post
	Thank you very much, Tim. I added the function prototype and now it works perfectly.


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