Build error: “An expression is too long or complex to compile”

Question

Every now and then when I build a specific solution, I\'ll get a random amount of \"An expression is too long or complex to compile\" in the Error List window. However, the

Answer 1

I got this problem today. Somehow I got a really long string in my index.cshtml file. So check for long strings that can cause this problem.

Answer 2

If cleaning and rebuilding works, it's obviously not a problem with your code. You should report this to Microsoft, seems like a VS bug.

Answer 3

i got this error cause of very big svg file. and after google it and some personal experiment i found that the solution for big svg file is:

@Html.Raw(File.ReadAllText(Server.MapPath("~/image.svg")))

in razor file there is another approach with html partial but unfortunately this trick is not working with big svg file.

hope this help..

Answer 4

I got this problem today in visual studio 2019. I got a really long string

<img height="445" src="data:image/png;base64,iVBORw...

in my file.aspx file. Even long images in vs2019 that can cause this problem.