zsh: command not found: dotnet

As an AI language model, I cannot access your system's environment to determine the exact cause of the error. However, based on the error message, it seems like the `dotnet` command is not recognized by the `zsh` shell. This could be due to several reasons, such as:

1. The .NET Core SDK is not installed on your system.
2. The PATH environment variable is not set correctly.
3. The `dotnet` executable is not located in one of the directories listed in the PATH environment variable.

To resolve this issue, try the following steps:

1. Install the .NET Core SDK by following the instructions provided in the official documentation for your operating system.
2. Check if the PATH environment variable is set correctly by running the following command:

`echo $PATH`

The output should contain the path to the directory where the `dotnet` executable is located.

3. If the `dotnet` executable is not located in any of the directories listed in the PATH environment variable, add the directory containing the `dotnet` executable to the PATH environment variable by running the following command:

`export PATH=$PATH:/path/to/dotnet`

Replace `/path/to/dotnet` with the actual path to the directory containing the `dotnet` executable.

Once you have completed these steps, try running the `dotnet` command again to see if the issue has been resolved.