Hi. I'm trying to add genercis support to iOS project. My build.gradle.kts is: ``` targets { ...

# multiplatform

[Dariusz Rusin]

Hi. I'm trying to add genercis support to iOS project. My build.gradle.kts is:

targets {
        final def iOSTarget = System.getenv('SDK_NAME')?.startsWith("iphoneos") \
                              ? presets.iosArm64 : presets.iosX64

        fromPreset(iOSTarget, 'ios') {
            binaries {
                framework('multiplatform-code') {
                    freeCompilerArgs.add("-Xobjc-generics")
                }
            }
        }

        fromPreset(presets.jvm, 'android')
    }

And I'm getting this error:

Build file '/..../multiplatform-code/build.gradle' line: 40

* What went wrong:
A problem occurred evaluating root project 'multiplatform-code'.
> Operation is not supported for read-only collection

And line 40 is:

freeCompilerArgs.add("-Xobjc-generics")

I dont understand the source of the problem. What exactly "Operation is not supported for read-only collection" is mean?

[ribesg]

freeCompilerArgs is a List, you can’t add to a list. Try setting it to a new list

[ribesg]

freeCompilerArgs = freeCompilerArgs + "-Xobjc-generics"

[Dariusz Rusin]

oooooooh

[Dariusz Rusin]

<facepalm>

[Dariusz Rusin]

thanks

[sikri]

freeCompilerArgs += “-Xobjc-generics”