Trouble with Android Studio

Here is my problem:
C:\Fluttermed\medrxflutter>flutter run
Launching lib\main.dart on SM N960U in debug mode...
Checking the license for package Android SDK Platform 29 in C:\Program Files (x86)\Android\android-sdk\licenses
License for package Android SDK Platform 29 accepted.
Preparing "Install Android SDK Platform 29 (revision: 5)".
Warning: Failed to read or create install properties file.

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Failed to install the following SDK components:
platforms;android-29 Android SDK Platform 29
The SDK directory is not writable (C:\Program Files (x86)\Android\android-sdk)

I have spend hours and now my vs code will not work. I have the same problem in Android Studio.
I have been working on this for two days.

Need to get a MVP done!!!