adding output for #3881
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@ -43,7 +43,7 @@ def assert_rospack_built():
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p = subprocess.Popen(["rospack","help"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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output = p.communicate()
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if p.returncode != 0:
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print("rospack not available.\nPlease install rospack before using rosmake and make sure it is available on your path.", file=sys.stderr)
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print("rospack not available.\nPlease install rospack before using rosmake and make sure it is available on your path. %s %s"%(output[0], output[1]), file=sys.stderr)
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sys.exit(-1)
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result = 1
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