Ubuntu 20.04 and driver 304.137 failed

I am running 20.04.1 on kubuntu x86_64, but having problems installing “NVIDIA GeForce 7300 GT” on 5.4.0-42-generic kernel at macPro1.1.

I tried with NVIDIA-Linux-x86_64-304.137.run .

nvidia-installer log file '/var/log/nvidia-installer.log’
creation time: Thu Aug 13 07:43:20 2020
installer version: 304.137

PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin

nvidia-installer command line:
./nvidia-installer
–dkms

Using: nvidia-installer ncurses v6 user interface
-> License accepted.
-> Installing NVIDIA driver version 304.137.
-> There appears to already be a driver installed on your system (version: 304.137). As part of installing this driver (version: 304.137), the existing driver will be uninstalled. Are you sure you want to continue? (‘no’ will abort installation) (Answer: Yes)
-> Would you like to register the kernel module sources with DKMS? This will allow DKMS to automatically build a new module, if you install a different kernel later. (Answer: Yes)
-> Installing both new and classic TLS OpenGL libraries.
-> Installing classic TLS 32bit OpenGL libraries.
-> Install NVIDIA’s 32-bit compatibility OpenGL libraries? (Answer: No)
-> Uninstalling the previous installation with /usr/bin/nvidia-uninstall.
-> Searching for conflicting X files:
-> done.
-> Searching for conflicting OpenGL files:
-> done.
-> Installing ‘NVIDIA Accelerated Graphics Driver for Linux-x86_64’ (304.137):
executing: ‘/usr/sbin/ldconfig’…
executing: ‘/usr/sbin/depmod -aq’…
depmod: WARNING: Ignored deprecated option -q
-> done.
-> Driver file installation is complete.
-> Installing DKMS kernel module:
ERROR: Failed to run /usr/sbin/dkms build -m nvidia -v 304.137 -k 5.4.0-42-generic:
Kernel preparation unnecessary for this kernel. Skipping…

Building module:
cleaning build area…
make -j4 KERNELRELEASE=5.4.0-42-generic module SYSSRC=/lib/modules/5.4.0-42-generic/build…(bad exit status: 2)
ERROR (dkms apport): binary package for nvidia: 304.137 not found
Error! Bad return status for module build on kernel: 5.4.0-42-generic (x86_64)
Consult /var/lib/dkms/nvidia/304.137/build/make.log for more information.
-> error.
ERROR: Failed to install the kernel module through DKMS. No kernel module was installed; please try installing again without DKMS, or check the DKMS logs for more information.
ERROR: Installation has failed. Please see the file ‘/var/log/nvidia-installer.log’ for details. You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.

/var/lib/dkms/nvidia/304.137/build/make.log contains:

make -f ./scripts/Makefile.modbuiltin obj=arch/x86/platform
make -f ./scripts/Makefile.modbuiltin obj=arch/x86/platform/pvh
(for m in fs/configfs/configfs.ko; do echo $m; done;
cat /dev/null ) > fs/configfs/modules.builtin
make -f ./scripts/Makefile.modbuiltin obj=arch/x86/platform/atom
/usr/src/linux-headers-5.4.0-42-generic/tools/build/Makefile.build:37: /usr/src/linux-headers-5.4.0-42-generic/tools/build/Build.include: No such file or directory
make -f ./scripts/Makefile.modbuiltin obj=fs/crypto
make[6]: *** No rule to make target ‘/usr/src/linux-headers-5.4.0-42-generic/tools/build/Build.include’. Stop.
make[5]: *** [Makefile:43: /usr/src/linux-headers-5.4.0-42-generic/tools/objtool/fixdep-in.o] Error 2
make[4]: *** [/usr/src/linux-headers-5.4.0-42-generic/tools/build/Makefile.include:5: fixdep] Error 2

Any ideas?