Gradle Build Failure Could not open proj class cache for build file

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FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'oscar'.
> Could not open proj class cache for build file '/Users/prakashv/dev/workspace/oscar-api/build.gradle' (/Users/prakashv/.gradle/caches/2.6/scripts/build_7o20dvaacd2xu3ci3o56uhd4f/proj).
   > Timeout waiting to lock proj class cache for build file '/Users/prakashv/dev/workspace/oscar-api/build.gradle' (/Users/prakashv/.gradle/caches/2.6/scripts/build_7o20dvaacd2xu3ci3o56uhd4f/proj). It is currently in use by another Gradle instance.
     Owner PID: unknown
     Our PID: 47991
     Owner Operation: unknown
     Our operation: Initialize cache
     Lock file: /Users/prakashv/.gradle/caches/2.6/scripts/build_7o20dvaacd2xu3ci3o56uhd4f/proj/cache.properties.lock

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

Any idea what the problem could be ? I am using gradle 2.6 and Java 1.8.0_60

To solve this I had to first kill the Java(TM) Platform SE binary process and then I was able to delete the whole /Users/<username>/.gradle/caches folder which allowed Gradle commands to work once again.

I believe this issue may have happened for me as a result of adding a new dependency to my build.gradle file through IntelliJ IDEA.

Elasticsearch fails to build with java13 · Issue #46851 · elastic , gradlew build FAILURE: Build failed with an exception. What went wrong: A problem occurred configuring project Could not open proj generic class cache for build file '/home/server195/elasticsearch/buildSrc/build.gradle'  The missing AIDL something is google android studio problem to not update major gradle dependencies class path. Fix: – open project gradle file (no app, project !) – replace: classpath ‘com.android.tools.build:gradle:1.0.1’ or whatever with classpath ‘com.android.tools.build:gradle:1.3.1’

What @Shriganesh Kolhe said on Apr 22 '17 at 18:12 is roughly 97.3% correct--just a missing \ in the path to navigate to. Corrected/clarified below.

What follows is a generalization of the process since we're all way past gradle release 2.14.1. (Today I'm at 4.1.) And this error will happen again to someone, some day at a higher gradle release.

(1) Locate the folder caches at the end of this path: C:\Users\your_user_name\.gradle\caches\. (For me, this was C:\Users\Dov\.gradle\caches\.)

(2) Find the folder whose name is the LARGEST release number SMALLER than the gradle release being installed. (For me, installing 4.1, this was 3.3.)

(3) For safety, copy the scripts and scripts-remapped folders to safe places.

(4) Then (no worries--you're backed up!) delete all the files in those folders.

(5) Finally build again.

(In the unlikely event that this causes errors, put the moved folders back in place. It worked great for me as outlined.)

‍🤝‍ Gradle build error Could not open proj class cache for build file , To solve this problem, I had to kill the Java (TM) Platform SE binary process first, and then I was able to delete the entire /Users/<username>/.gradle/caches  I have a gradle build project that consists of a buildSrc/build.gradle and a project-level build.gradle. The buildSrc/build.gradle compiles a jar dependency that contains a class the project-level

Gradle under Docker, I'm getting an error when trying to build my project using Gradle 2.13 on a docker container. All gradle commands fail with: FAILURE: Build  This doesn't appear to happen on every build and I believe the build sometimes works and then fails later (with another new daemon). Expected Behavior. Gradle would not fail to start. Current Behavior. Gradle fails with a cryptic message: Could not create service of type TaskOutputFilesRepository using TaskExecutionServices

go to the build folder its pointing and delete the " cacheproperties.lock " files if it shows again a different one this time , delete that too . In my case i did it 2 times .

Gradle bugchecks when encountering "new project.file('filename.ext , The following build.gradle script results in an unexpected error: build.gradle: def The result: c:\jdev\gradlebugs\20160112>gradle FAILURE: Build failed with an exception… Could not open proj class cache for build file  I am new in android programming and I use android studio IDE 3.1 I'm trying to import ECLIPSE ANDROID PROJECT into android studio and realease an apk . It has been two weeks trying that but i get

navigate to C:\Users\user.gradle\caches\2.14.1

move the 'scripts' and 'scripts-remapped'folder to somewhere else. (just in case if something goes wrong)

then try to build again.

It works for me.

Why gradle could not open cp_proj remapped class cache for a , I get a gradle error: FAILURE: Build failed with an exception. What went wrong: A problem occurred Could not open cp_proj generic class cache for build file  GRADLE-1801; Could not open cache directory taskArtifacts. Log In. Export. XML Word Printable. Details. FAILURE: Build failed with an exception. What went wrong:

IDE, Gradle, Java 13: "Could not open cp_init remapped class cache , FAILURE: Build failed with an exception. * What went wrong: Could not open cp_init remapped class cache for 3ccbt2tudolc41a4jbzgbazn  The Gradle build cache is a cache mechanism that aims to save time by reusing outputs produced by other builds. The build cache works by storing (locally or remotely) build outputs and allowing builds to fetch these outputs from the cache when it is determined that inputs have not changed, avoiding the expensive work of regenerating them.

Can not run Flutter app on Android, Ask questionsCan not run Flutter app on Android. FAILURE: Build failed with an exception. Where: Build file '/Users/nhanle/Documents/flutter/my_app/android/​build.gradle' line: 26 Could not open proj generic class cache for build file  > Could not open cp_proj remapped class cache for aymfmvqz7m4rx0xrpgrjhp46f (C:\Users\deepy\AppData\Local\Temp\.gradle-test-kit-deepy\cache

gradlew Ema:Examples:tasks --all error, FAILURE: Build failed with an exception. Could not open settings generic class cache for settings file L1.java.rrg\Java\settings.gradle'  FAILURE: Build failed with an exception. Where: Build file 'E:\App\i_am_rich\android\build.gradle' line: 26. What went wrong: A problem occurred evaluating root project 'android'. A problem occurred configuring project ':app'. Could not open cp_proj remapped class cache for di1ovajg50qte31k2y0dno8wu

Comments
  • I had to do this stackoverflow.com/questions/21523508/… to fix the problem. Had no idea why it happened though.
  • Did you check to see if you have PID 47991 running?
  • I got the same problem as the OP after performing a System Restore (Windows 7). I noticed that the system restore reverted some javascript files I was working on, so I suspect it has reverted some files in my Android project, too.
  • It may not be necessary to delete the whole cache. I only needed to delete the cache mentioned in the error message. It was also not necessary to stop Java. I'd suggest trying minimal disruption first, and then expand it it doesn't work.
  • I tried this about six times, but the lock file kept coming back.
  • Hope you can understand me