Some Mac users reported, they getting “CoreTelephony Trace File error” error message in each reboot after they login.
When this error message appears?
After you install your new SSD hard drive and using it as a primary drive for iMac or MacBook Pro, this issue happened.
Solution 1: Choose the location for user folder
- Go to Apple menu -> System Preferences -> Users & Groups. Click the lock icon to unlock it (If it ask username and password, enter admin username & password).
- Right click your user account for Advance options.
- Select the location of the user folder (Even it was in the right/same location).
- Restart your system.
Solution 2: Change the sharing permission to read & write
Navigate to /private. Right click it -> Get info -> Sharing & permissions and change it permission to read and write.
Solution 3: Just change the /tmp/ folder permission
This issue sometimes happened because of the permission problem.
- Open Teminal.
- Type the following command sudo chown root:wheel /tmp and click Enter. You may need to enter your login password.
- Now type the following command sudo chmod -R 777 /temp and click Enter. You might need to enter your login password again.
- Exit Terminal app and restart your system.
Solution 4: Create /tmp/ folder
You mistakenly or accidentally removed a directory named “/tmp“/. So you need to manually recreate this directory.
- First manually create this directory.
- Then open Terminal and type,sudo chmod 1777 /tmp to give right permission settings.
Solution 5: Upgrade your Mac system OS to macOS Sierra
Lot of Mac users reported that upgrading their computer OS to macOS Sierra solved the issue.
If you knew any other solutions to solve “CoreTelephony Trace File error” on Mac, inform us through comment.