Errors in MantaDemoAnalysis.py

[HeejunJang]

I installed manta succesfully but there's an issue running demo

**** Starting demo configuration and run.
**** Configuration cmd: "/work/tools/manta/bin/configManta.py" --normalBam="/work/tools/manta/share/demo/manta/data/HCC1954.NORMAL.30x.compare.COST16011_region.bam" --tumorBam="/work/tools/manta/share/demo/manta/data/G15512.HCC1954.1.COST16011_region.bam" --referenceFasta="/work/tools/manta/share/demo/manta/data/Homo_sapiens_assembly19.COST16011_region.fa" --region=8:107652000-107655000 --region=11:94974000-94989000 --exome --runDir="MantaDemoAnalysis"

Traceback (most recent call last):
File "/work/tools/manta/bin/configManta.py", line 182, in
main()
File "/work/tools/manta/bin/configManta.py", line 163, in main
MantaWorkflow(options)
File "/work/tools/manta/lib/python/mantaWorkflow.py", line 775, in init
ensureDir(self.params.runDir)
File "/work/tools/manta/lib/python/workflowUtil.py", line 39, in ensureDir
os.makedirs(d)
File "/usr/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode)
OSError: [Errno 13] Permission denied: '/work/tools/manta/bin/MantaDemoAnalysis'

ERROR: Demo configuration step failed