mono-d is running on centos7 with options below:
first:

{
	"name": "ezsock",
	"targetType": "executable",
	"description": "A minimal D application.",
	"copyright": "Copyright © 2015, zhmt",
	"authors": ["zhmt"],
	"mainSourceFile": "source/app.d",
	"dependencies": {
		"gamelibd": {"path":"../gamelibd"}
	},
	"lflags":["-L../bin"],
	"workingDirectory":"../bin",
	"targetPath":"../bin",
}

second:

{
	"name": "gamelibd",
	"targetType": "sourceLibrary",
	"description": "A minimal D application.",
	"copyright": "Copyright © 2015, zhmt",
	"authors": ["zhmt"],
	"lflags":["-L../bin"],
	"workingDirectory":"../bin",
	"targetPath":"../bin",
}


The compilation complains that:

Compiling using dmd...
Error: conflicting Ddoc and obj generation options
FAIL .dub/build/application-debug-linux.posix-x86_64-dmd_2067-3E65324D543ED19695028F22620736D3/ ezsock executable
Error executing command build:
dmd failed with exit code 1.
Exit code 2


I cant figure out whats wrong with it. The almost same program compiles and runs
 well on mac osx.

I was stuck for almost a day, Thanks for your help in advance!

Finally,I got the dmd command line as below:

dmd -c -of.dub/build/application-debug-linux.posix-x86_64-dmd_2067-3E65324D543ED19695028F22620736D3/ezsock.o -debug -g -w -version=Have_ezsock -version=Have_gamelibd -Isource/ -I../gamelibd/source/ -Jviews source/app.d  ......


And try to remove dmd option one by one, but the same compilation error exists.

Weird.