Before Vensim can create a version of the model that can run a browser, you need to install the Emscripten software development kit (SDK). Emscripten is a compiler that can compile code that Vensim creates into a web-assembly file. Web assembly files can be run from within a browser.
First, you will need some software installed called Git. Git is a free and open source version control system and code repository. Git can be found at
Next, you also need Python 2.7.12 or later. This can be downloaded from
https://www.python.org/downloads/
IMPORTANT : Windows users. During installation of Python, you MUST tick the box "Add Python to PATH".
Now you can install the Emscripten SDK. Visit https://emscripten.org/ and search for the page titled "Download and install the SDK". It is important that you follow the instructions on the Emscripten pages to install the SDK properly. If it is not properly installed, Vensim will not be able to create the files to host your model on the internet.
The instructions can be a little difficult to follow. We have provided some files to help you install Emscripten. Click here for the Windows help, and here for the MacOS instructions.
