While trying to build a package, I gave the following command in terminal:

cd Downloads/src/
cd unity-5.10.0/
dpkg-buildpackage -rfakeroot -uc -b

Then it gives the output:

dpkg-buildpackage: export CFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security
dpkg-buildpackage: export CPPFLAGS from dpkg-buildflags (origin: vendor): -D_FORTIFY_SOURCE=2
dpkg-buildpackage: export CXXFLAGS from dpkg-buildflags (origin: vendor): -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security
dpkg-buildpackage: export FFLAGS from dpkg-buildflags (origin: vendor): -g -O2
dpkg-buildpackage: export LDFLAGS from dpkg-buildflags (origin: vendor): -Wl,-Bsymbolic-functions -Wl,-z,relro
dpkg-buildpackage: source package unity
dpkg-buildpackage: source version 5.10.0-0ubuntu6
dpkg-buildpackage: source changed by Didier Roche <[email protected]>
dpkg-buildpackage: host architecture i386
dpkg-source --before-build unity-5.10.0
dpkg-checkbuilddeps: Unmet build dependencies: libutouch-grail-dev (>= 1.0.20) libutouch-geis-dev (>= 2.0.10)
dpkg-buildpackage: warning: Build dependencies/conflicts unsatisfied; aborting.
dpkg-buildpackage: warning: (Use -d flag to override.)

Then I tried to install the package using:

cd..
sudo dpkg -i *deb

And it gives:

[sudo] password for harshnarang8: 
dpkg: error processing *deb (--install):
cannot access archive: No such file or directory
Errors were encountered while processing:
*deb

What is exactly causing the problem and how to encounter it?