Cannot read property 'added' of null
TypeError: Cannot read property 'added' of null
    at Object.exports.default (/app/danger-0.ghym2ocg10s.ts:16:44)
    at process._tickCallback (internal/process/next_tick.js:68:7)

11|         warn("The PlayStoreStrings.po file must be updated any time changes are made to release notes");
12|     }
13| 
14|     // If changes were made to the strings, make sure they follow our guidelines
15|     const modifiedStrings = modifiedFiles.filter((path: string) => path.endsWith('values/strings.xml'))
----------------------------------------------^
16| 
17|     for (let file of modifiedStrings) {        
18|         const stringDiffs = await danger.git.diffForFile(file)
19| 

Cannot read property 'diff' of null
TypeError: Cannot read property 'diff' of null
    at checkCommitDiffs (/app/danger-0.1al3dadt1ei.ts:43:49)
    at process._tickCallback (internal/process/next_tick.js:68:7)

38|         if (git === undefined) {
39|             console.log("About to crash due to an error")
40|             console.log("File:", thisFile)
41|             console.log("Danger Object: ", danger)
42| 
---------------------------------------------------^
43|             if (danger !== undefined) {
44|                 console.log("Danger is no longer defined")
45|             }
46|             else {