Error: Operation Terminated Compiler License Invalid or Not accessible.

Answer:

Question: What does error: "Operation Terminated Compiler License Invalid or Not accessible" means?

Response: There are two possible reasons.

1. Compiler License may be Invalid, OR

2. Check the following in PSoC Designer.

a. Go to Menu Tools >> Option >> Build >> Compiler. Check if the Compiler selected is "HI-TECH" or "Imagecraft".  Make sure that you have the license for the selected compiler. 
b. Go to Menu Project >> Settings >> Build >> Compiler.  Check if the Compiler selected is "HI-TECH" or "Imagecraft".
  Make sure that you have the license for the selected compiler.

PSoC Designer 5.0 SP4.5 and later comes with a free Imagecraft compiler. It has no size limits or time restrictions. A Pro version is also sold by ImageCraft.