Hi taghaboy,
Was in the same boat except I'm using WAMP Server. However, I found a
fix for this a few months ago on the Flutter site and saved the
details.
Also, - a BIG thank you to the person who originally wrote this on the
"original" Flutter site - extremely helpful and much appreciated tip!
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Ok... here goes... (the folder paths below should be changed to your
folder paths):
In Windows, we don't have the "chmod" command but you can use the
"attrib" command in a command prompt (also known as: ms-dos console)
Example:
If your Flutter plugin is in "C:\wamp\www\wordpress\wp-content\plugins
\Flutter\", and you want to enable write access for everyone (i.e. as
they do chmod 777 in Unix), do this:
Open a Command Prompt. One way is to... Go to Start > All Programs >
Accessories > Command Prompt
Once the Command Prompt is open, type the line below replacing the
folder path with "your" Flutter plugin folder path on "your" local
machine:
attrib -r +s C:\wamp\www\wordpress\wp-content\plugins\Flutter\cache\
After that's been typed do yourself a favor a double check the path
for typos, etc - if there's one little thing wrong with the path
you'll have to start all over again.
Once you've double checked simply Hit Enter!
Apply this same process for every folder with the write error access
message displayed for Flutter.
Hope that helps!! - Alex