Hey there! Let's tackle this resource merge error you're hitting with your Codecanyon app code. I’ve seen this pop up a few times with third-party projects, so here are some straightforward fixes to try:

• Clean and Rebuild the Project
  This is the first go-to for most build resource issues. In Android Studio, head to Build > Clean Project first, then once that finishes, run Build > Rebuild Project. Sometimes cached intermediate files (like the ones in your intermediates/mergeDebugResources/ path) get corrupted, and wiping them out can resolve the missing file error.

• Check for Missing Resource Files
  Navigate to your project's res directory and look for the values-ldltr-v21 folder. If it's missing entirely, it might have been omitted from the Codecanyon package. You can create it manually:

  1. Right-click the res folder > New > Android Resource Directory
  2. Set Directory name to values-ldltr-v21
  3. Make sure Available qualifiers includes "Layout Direction" (set to Left to Right) and "Version" (API level 21)
  4. Inside this folder, create a blank values.xml file (you can copy contents from the regular values-v21/values.xml if needed)

• Invalidate Caches and Restart Android Studio
  Corrupted IDE caches can also cause weird resource merge issues. Go to File > Invalidate Caches... and select "Invalidate and Restart". This will clear Studio's cached data and reload your project from scratch.

• Check Gradle Configuration
  Sometimes third-party projects have misconfigured Gradle scripts that don't properly include certain resource directories. Open your app-level build.gradle file and make sure the sourceSets block (if present) includes all resource directories. It should look something like this:

  android {
      sourceSets {
          main {
              res.srcDirs = ['src/main/res']
          }
      }
  }
  

  If there are any custom paths here, ensure values-ldltr-v21 is being included.

• Resolve the ExecutionException Root Cause
  The java.util.concurrent.ExecutionException is usually a side effect of the missing file error. Fixing the missing values-ldltr-v21.xml should resolve this, but if not, check the full error log (expand the error in the Build tab) to see what the underlying exception is—often it's a related resource issue like a missing drawable or malformed XML.

内容的提问来源于stack exchange，提问作者Stephen Kent