public String getErrorMessage() {
		return errMsg;
	}
Return any error message associated with the
decompilation producing these results.  Generally,
there will only be an error if the decompilation was
aborted for some reason, but there could conceivably
be warnings obtainable via this method, even if the
decompilation did complete.
@return any error message associated with these results
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompileResults.java