Error while creating rpm package using rpmbuild from spec file - linux

Question

I want to build a rpm package from a spec file(hello-world.spec).The command and error output are given below
Command1:
rpmbuild -ba hello-world.spec
ErrorOutput1:
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.z4GoQn
+ umask 022
+ cd /root/rpmbuild/BUILD
+
: not foundm-tmp.z4GoQn: 28: /var/tmp/rpm-tmp.z4GoQn:
error: Bad exit status from /var/tmp/rpm-tmp.z4GoQn (%prep)
RPM build errors:
Bad exit status from /var/tmp/rpm-tmp.z4GoQn (%prep)
Content of my spec file is
Name: hello-world
Version: 1
Release: 1
Summary: Most simple RPM package
License: FIXME
%description
This is my first RPM package, which does nothing.
%prep
# we have no source, so nothing here
%build
cat > hello-world.sh <<EOF
#!/usr/bin/bash
echo Hello world
EOF
%install
mkdir -p %{buildroot}/usr/bin/
install -m 755 hello-world.sh %{buildroot}/usr/bin/hello-world.sh
%files
/usr/bin/hello-world.sh
%changelog
# let's skip this for now
My System/software details are
OS: Ubuntu 16.04
RPM version:4.12.0.1
The list of contents in rpmbuild folder is
Command2:
:~/rpmbuild# ls
Output2:
BUILD BUILDROOT RPMS SOURCES SPECS SRPMS
Can anybody help on this issue?

Answer 1

Check how your files is being generated. If you are passing files from windows to Linux, usually, there are different EOL for the files. We had a similar issue, I recommend you to change all the files to Unix format. I'm sharing with you how to reproduce your issue, if you edit that file in a Linux environment, like "nano", the problem disappears.