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  VS Arduino › Visual Micro › Installation & Troubleshooting › Visual Studio 2022 upgrade - issues with compiling simple sketch
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Normal Topic Visual Studio 2022 upgrade - issues with compiling simple sketch (Read 1179 times)
Arnd
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Visual Studio 2022 upgrade - issues with compiling simple sketch
Dec 27th, 2021 at 2:50pm
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I recently upgraded from Visual Studio 2021 to Visual Studio 2022 and have some strange new issues. The following Sketch compiles using the Arduino IDE but not in VS2022 with Visual Micro when set to "Arduino UNO", but has no problems when set to "Arduino micro". The error occurs both when doing a "debug" or a "release" build.

Code (C++)
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void setup() {
  Serial.begin(115200);
} // of method setup()

void loop() {
  Serial.println("\nHello World\n");
} // of method loop()


The error from the "Micro Build" is:
Quote:
Compiling 'Sketch2' for 'Arduino Uno'
Build Folder: "file:///C:/Users/Arnd/AppData/Local/Temp/VMBuilds/Sketch2/uno/Release"
cc25bOqI.ltrans0.ltrans.o*: (.rodata+0x6): undefined reference to Print::write(unsigned char const*, unsigned int)
crtatmega328p.o: (.init9+0x0): undefined reference to main

Error linking for board Arduino Uno
Build failed for project 'Sketch2'
 
collect2.exe*: error: ld returned 1 exit status


What could be happening here?
  
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Tim@Visual Micro
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Re: Visual Studio 2022 upgrade - issues with compiling simple sketch
Reply #1 - Dec 27th, 2021 at 3:51pm
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It's possible you have a partial or old board manager avr core installed. However it is always difficult to answer build questions without the information requested in the yellow box above.

  
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Arnd
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Re: Visual Studio 2022 upgrade - issues with compiling simple sketch
Reply #2 - Dec 28th, 2021 at 7:03am
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Hello Tim,

I forgot to paste that output to the end of my post yesterday. I just went back to copy that and decided, based on your comment, to do a "Build->Build full program database file for solution" and "Build->clean solution" to see if that cleared out any pre-existing issues.

It did. The error is now gone and this sketch compiles with nary an issue.

Thanks.
  
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