Developer Chrome extension: Package is invalid. Details: "Could not uzip extension'

Question

I have developed a chrome extension. I made some small updates, and suddely the extension can\'t be installed through chrome web-store. I get the error

Packa

Answer 1

I had this same problem just yesterday. What apparently fixed it for me (I tried a lot of things, probably did all the same web searches as you) was zipping the files at top level and not zipping the directory that contains them. That is, the zip listing looks like this:

$ unzip -l extension.zip 
Archive:  extension.zip
  Length     Date   Time    Name
 --------    ----   ----    ----
     659  03-05-13 14:12   manifest.json
...

And not like this:

$ unzip -l extension.zip 
Archive:  extension.zip
  Length     Date   Time    Name
 --------    ----   ----    ----
        0  03-05-13 15:41   extension/
      641  03-05-13 15:41   extension/manifest.json
...

Even though I swear the latter packaging worked for me earlier.