An error occurred while installing karma on mac.

An error occurred while installing karma on mac.

Today I learned how to develop the marka test driver from angular, and installed it. The result is always prompted that the command cannot be found. For example:

I found some information and found that marka had little information. Finally, I found the problem.

The reason is that npm does not create a soft link to the Karam directory under the/usr/local/bin directory. Because the actual installation directory of Karma may be:/usr/local/lib/node_modules/karma

Solution: Create a soft link under the/usr/local/bin directory: sudo ln-s/usr/local/lib/node_modules/karma/bin/karma

After solution:

An error occurred while wiping the Windows System Disk Under Mac OS.

This is a system-installed drive. In the AMC system, it is regarded as a part of the system, so errors occur frequently. You can try to format it with a disk tool without a system. Method: Power + option boot, select the disk tool after the recovery disk is started. It should be enough. You don't need to be too complicated. You just need to create a partition. The format is mac OS extension.

An error occurred while installing mac OS x mavericks.

1. Start the computer again, press the option key, and then press command + R to access the internet.

2. Select to download the disk tool.

3. Go to the disk tool and erase all the ms-dos partitions.

4. Select the hard disk and click the partition on the right. Select 1 partition. Click "option" below and select "GUID ...".

5. Exit the disk tool and select mac OS x mavericks to install the tool. (do not restart the tool. Otherwise, download the disk tool again)

6. Start network installation