System.Drawing is not supported on this platform. System.PlatformNotSupportedException: System.Drawing is not supported on this platform. at System.Drawing.Bitmap..ctor(Int32 width, Int32 height) at M10008.CaSignMiniPro.Shared.ValidateCode.CreateValidateGraphic(String validateCode, Int32 fontSize, Int32 lineHeight) in E:\11code\11casignMinipro\M10008.CaSignMiniPro\Shared\Tools\ValidateCode.cs:line 49 at M10008.CaSignMiniPro.Application.BasicApplication.CreateImgCode() in E:\11code\11casignMinipro\M10008.CaSignMiniPro\Application\BasicApplication.cs:line 89 at M10008.CaSignMiniPro.Service.BasicService.ImgCode() in E:\11code\11casignMinipro\M10008.CaSignMiniPro\Service\BasicService.cs:line 221
net core publish 发布命令的时候
System.Drawing.common.dll生成有问题
这个dll文件正常是600kb的,每次生成都会把这个小文件的dll打出来.
替换一下就行...去自己的包源找一下
net core System.Drawing is not supported on this platform.
原文：https://www.cnblogs.com/blogs2014/p/12673074.html