aesmd.service not found

I'm unable to install aesmd on my system. I followed the guide [https://github.com/intel/linux-sgx](https://github.com/intel/linux-sgx) to build and install Intel SDK and PSW. I'm using Ubuntu 18.04
- I get the following error for ` sudo service aesmd start`:
``` Failed to start aesmd.service: Unit aesmd.service not found. ```

- Output of `lsmod | grep "sgx"`
``` isgx 49152 0```
- Output of `dmesg | grep "sgx"`
``` [249102.116325] ksgxswapd: done
[249102.116871] intel_sgx: second release call skipped
[249167.190208] intel_sgx: Intel SGX Driver v2.6.0
[249167.190222] intel_sgx INT0E0C:00: EPC bank 0x80200000-0x85f80000
[249167.191765] intel_sgx: second initialization call skipped
[421821.372493] ksgxswapd: done
[421821.373215] intel_sgx: second release call skipped
[421964.322949] intel_sgx: Intel SGX Driver v2.6.0
[421964.322963] intel_sgx INT0E0C:00: EPC bank 0x80200000-0x85f80000
[421964.324687] intel_sgx: second initialization call skipped
[423224.929146] ksgxswapd: done
[423224.929823] intel_sgx: second release call skipped
[479624.534233] intel_sgx: Intel SGX Driver v2.6.0
[479624.534247] intel_sgx INT0E0C:00: EPC bank 0x80200000-0x85f80000
[479624.538943] intel_sgx: second initialization call skipped
```

I've tried rebuilding the driver, SDK and PSW, but I still get this issue. How can I fix this?