I installed Unity and gave error, I can not view the demo of the game nor put the scripts

Question

These are the errors that appear when I open Unity:

Assets/_CompletedAssets/Scripts/Helpers/RandomParticlePoint.cs(12,9): error CS0619: `UnityEngine.Component.particleSystem' is obsolete: `Property particleSystem has been deprecated. Use GetComponent<ParticleSystem>() instead. (UnityUpgradable)'
Assets/_CompletedAssets/Scripts/Helpers/RandomParticlePoint.cs(12,24): error CS1061: Type `UnityEngine.Component' does not contain a definition for `Simulate' and no extension method `Simulate' of type `UnityEngine.Component' could be found (are you missing a using directive or an assembly reference?)

And when I put a script:

Please fix compile errors before creating new script components.

Answer 1

The first mistake is that you are using an old project, and have not converted it to work in Unity 5.

The second is similar, the difference is that he calls for a method and does not find.

When you answer which project you’re trying to run, I explain what you need to do to make it work - if possible, because some very old projects are well outdated and the work to solve would not be plausible for a stackoverflow response(but this should not be the case, this error is common in the latest version 4 projects).

Answer 2

This happens because your "UnityEngine.Component.particleSystem" set a preview property after you executed your preview. In this case, check your extensions or reinstall the software.