New article: "Compilation error: exit status 1"

Author: seaxwi

content/Software Support/Compilation/Compilation-error-exit-status-1.md

@@ -0,0 +1,23 @@
+---
+title: "Compilation error: exit status 1"
+---
+
+A `Compilation error: exit status 1` error indicates that the sketch compilation process has failed, and is not related to the upload process. For more information, look at previous lines in the error output.
+
+For example, check this error output:
+
+```
+.../core_arduino_samd_mkrwifi1010_dc4ffca0ef28855003b5cc223e78a605.a(main.cpp.o): In function `main':
+.../Arduino15/packages/arduino/hardware/samd/1.8.13/cores/arduino/main.cpp:53: undefined reference to `loop'
+collect2: error: ld returned 1 exit status
+
+exit status 1
+
+Compilation error: exit status 1
+```
+
+The most useful information is ``undefined reference to `loop'``, which occurs because the sketch is missing a correctly defined `loop()` function.
+
+## Further reading
+
+* [If your sketch doesn't compile](https://support.arduino.cc/hc/en-us/articles/4402764401554-If-your-sketch-doesn-t-compile)