Failed to precompile ipopt

If you are encountering the error “Failed to precompile ipopt” in Julia, it means that the ipopt package failed to compile during the installation process. This error can occur due to various reasons, such as missing dependencies or incompatible versions. In this article, we will explore three different ways to solve this issue.

Option 1: Updating Julia and Packages

The first step is to ensure that you are using the latest version of Julia. Open your Julia REPL and enter the following command:

versioninfo()

This will display the version information of Julia. If you are not using the latest version, update Julia by downloading and installing the latest release from the official Julia website.

Next, update all the packages in your Julia environment by running the following command:

] update

This will update all the installed packages to their latest compatible versions. Once the update is complete, try installing the ipopt package again by running:

] add ipopt

If the error still persists, proceed to the next option.

Option 2: Installing Dependencies

The ipopt package has certain dependencies that need to be installed before it can be successfully compiled. To install these dependencies, follow these steps:

1. Open your Julia REPL and enter the package manager by typing:

]

2. Enter the following command to add the required dependencies:

add CMake

3. Once the installation is complete, exit the package manager by typing:

exit

Now, try installing the ipopt package again by running:

] add ipopt

If the error still persists, proceed to the next option.

Option 3: Manual Compilation

If the above options did not resolve the issue, you can try manually compiling the ipopt package. Follow these steps:

1. Download the ipopt source code from the official website.

2. Extract the downloaded file to a directory of your choice.

3. Open a terminal or command prompt and navigate to the extracted directory.

4. Run the following commands to compile and install the ipopt package:

cd Ipopt

./configure

make

make install

Once the installation is complete, try importing the ipopt package in Julia to check if the error is resolved.

After trying all three options, it is recommended to first update Julia and packages, as it is the simplest and most straightforward solution. If that doesn’t work, proceed with installing dependencies or manual compilation. The best option may vary depending on your specific system configuration and requirements.