Fails to build install on ubunto 18.04.5 LTS.

[kfiry77]

I am trying to build on ubuntu 18.04.5 and when running "sudo make install" I am getting the message:

make -C /lib/modules/5.4.0-74-generic/build M=/home/yoni/GIT/iManager modules
make[1]: Entering directory '/usr/src/linux-headers-5.4.0-74-generic'
Building modules, stage 2.
MODPOST 2 modules
make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-74-generic'
make -C /lib/modules/5.4.0-74-generic/build M=/home/yoni/GIT/iManager INSTALL_MOD_DIR=extra/imanager modules_install
make[1]: Entering directory '/usr/src/linux-headers-5.4.0-74-generic'
INSTALL /home/yoni/GIT/iManager/i2c-imanager.ko
At main.c:178:

• SSL error:02001002:system library:fopen:No such file or directory: ../crypto/bio/bss_file.c:72
• SSL error:2006D080:BIO routines:BIO_new_file:no such file: ../crypto/bio/bss_file.c:79
  sign-file: certs/signing_key.x509: No such file or directory
  INSTALL /home/yoni/GIT/iManager/imanager-core.ko
  At main.c:178:
• SSL error:02001002:system library:fopen:No such file or directory: ../crypto/bio/bss_file.c:72
• SSL error:2006D080:BIO routines:BIO_new_file:no such file: ../crypto/bio/bss_file.c:79
  sign-file: certs/signing_key.x509: No such file or directory
  DEPMOD 5.4.0-74-generic
  Warning: modules_install: missing 'System.map' file. Skipping depmod.
  make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-74-generic'
  /sbin/depmod -a