Could not find or load main class org gradle wrapper GradleWrapperMain

Question

I cleaned the whole project by deleting local directories like    gradle     m2    android and   workspace project  gradle and chosing File - gt  Invalidate Caches   Restart    in Android Studio  Now execution of the command   gradlew leads to the following output   usr    gradlew tasks Error  Could not find or load main class org gradle wrapper GradleWrapperMain   Needless to say  I deleted too much  the question is how can it be repaired again  Do you have any ideas how to fix this

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I fixed this problem with next fix  maybe it will help someone    Just check if the parent folders of your project folder have names with spaces or other forbidden characters  If yes - remove it    C  Users someuser Test Projects testProj  - on this case  Test Projects  should be  TestProjects

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if it s a new project  remove existing folder and run    npm install -g react-native-cli  check that runs without any error

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On Gradle 5 x I use   wrapper       gradleVersion    5 5 1

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In addition to  RaGe s answer may be the situation I faced where i had a global git ignore that was ignoring  jar files and so the gradle wrapper jar was never being committed   Thus I was getting that error on the Jenkins server after an attempted  var lib jenkins my project gradlew build   I had to explicitly force an add of the jar and then commit   git add -f gradle wrapper gradle-wrapper jar

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you can also copy the gradlew bat into you root folder and copy the gradlew-wrapper into gradlew folder   that s work for me

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In my case  I left out wrapper sub folder while copying gradle folder and got the same error   Could not find or load main class org gradle wrapper GradleWrapperMain  make sure you have the correct folder structure if you copy wrapper from other location     -- build gradle  -- gradle       -- wrapper           -- gradle-wrapper jar           -- gradle-wrapper properties  -- gradlew  -- gradlew bat  -- settings gradle

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I saw the same error but in my case it was a fresh Git installation without LFS installed  The repo in question was set up with LFS and the gradle-wrapper jar was in LFS so it only contained a pointer to the LFS server  The solution was simple  just run   git lfs install   And a fresh clone did the trick  I suppose git lfs pull or just a git pull could have helped as well but the person with the problem decided to do a fresh clone instead

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HankCa solved the problem in my case as well  I decided to change my dangerous      jar ignores to self-explanatory ones like src    lib   jar to avoid such problems in the future  Ignores starting with      are a bit too hazardous  at least to me  And it s always a good idea to get the idea behind a  gitignore row just by looking at it

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In my case   I had removed gradlew and gradle folders from project  Reran clean build tasks through  Run Gradle Task  from Gradle Projects window in intellij

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Our problem was that the gradle-wrapper jar file kept getting corrupted by git  We had to add a  gitattributes file with the line    jar binary  Then remove the jar from git and add it again  Weirdly enough that was only required for one of our repos but not the others

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In my case it was a global  gitignore  as explained in  HankCa s answer   Instead of forcefully adding the jar  which you ll need to remember to do in each Gradle project  I added an override to re-include the wrapper jar in my global  gitignore     jar  gradle wrapper gradle-wrapper jar   This is useful to me as I have many projects that use Gradle  Git will now remind me to include the wrapper jar   This override will work so long as no directories above gradle-wrapper jar  such as gradle and wrapper  are ignored -- git will not descend in to ignored directories for performance reasons

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I have got this error because my app was in a folder that have an Arabic name and I solve it with just changing the Arabic folder name to an English one and it works fine  So make sure that all the path of your app is written in English

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You are probably missing gradle-wrapper jar file under directory gradle wrapper in your project   You need to generate this file via this script in build gradle file as below   task wrapper type  Wrapper       gradleVersion    2 0     version required     and run task   gradle wrapper   With gradle 2 4  or higher  you can set up a wrapper without adding a dedicated task   gradle wrapper --gradle-version 2 3   OR  gradle wrapper --gradle-distribution-url https   myEnterpriseRepository 7070 gradle distributions gradle-2 3-bin zip   All the details can be found this link

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For Gradle version 5   this command solved my issue       gradle wrapper   https   docs gradle org current userguide gradle wrapper html sec adding wrapper

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In my case  using windows 10  gradlew bat has the following lines of code in   set DIRNAME   dp0 if   DIRNAME         set DIRNAME   set APP BASE NAME   n0 set APP HOME  DIRNAME    The APP HOME variable is essentially gradles root folder for the project  so  if this gets messed up in some way you are going to get      Error  Could not find or load main class   org gradle wrapper GradleWrapperMain   For me  this had been messed up because my project folder structure had an ampersand   amp   in it  Eg C  Test amp Dev MyProject  So  gradel was trying to find the gradle-wrapper jar file in a root folder of C  Test  stripping off everything after and including the   amp     I found this by adding the following line below the set APP HOME  DIRNAME  line above  Then ran the bat file to see the result   echo   APP HOME     There will be a few other  special characters  that could break a path directory

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I followed the answers from above when i ran into this  And If you are having this issue than make sure to force push both jar and properties files  After these two  i stopped getting this issue   git add -f gradle wrapper gradle-wrapper jar git add -f gradle wrapper gradle-wrapper properties

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Your gradle wrapper is missing  broken or corrupted    What is gradle wrapper  gradlew is the gradle wrapper executable - batch script on windows and shell script elsewhere  The wrapper script when invoked  downloads the defined gradle version and executes it  By distributing the wrapper with your project  anyone can work with it without needing to install Gradle beforehand  Even better  users of the build are guaranteed to use the version of Gradle that the build was designed to work with   Restoring gradle wrapper  It used to be that you needed to add a wrapper task to your build gradle to restore gradle wrapper and all its dependencies  For instance   task wrapper type  Wrapper        gradleVersion    4 1      Newer versions of gradle do not require this  It is now a built-in task  Just run   gradle wrapper   You can also supply additional flags to specify versions etc  gradle wrapper --gradle-version 6 2 --distribution-type all   When you run this task  a gradle wrapper script  and the required jar files are added to your source folders  Properties are stored in gradle wrapper gradle-wrapper properties   You may need to install gradle locally to run this  brew install gradle on mac for instance  See more detailed instructions here   Why was it missing in the first place  OP seems to have deleted something that gradle wrapper depends on   But a common reason is that a  gitignore entry prevents wrapper jars from being checked into git  Note that the  gitignore in effect may be in the source folder  or a global one in your user home folder or git global configuration  It is common to have a   jar entry in  gitignore   You can add an exception for gradlew s jar files in  gitignore    jar  gradle wrapper gradle-wrapper jar   or force add the wrapper jar into git  git add -f gradle wrapper gradle-wrapper jar   ref  Gradle Wrapper

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I uninstalled gradle and reinstalled it and then created a new wrapper    sudo apt remove gradle   sudo apt-get install gradle   gradle wrapper

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What worked for me is to first run    gradle wrapper   After successful build I was able to run     gradlew assembleRelease      Note  To be able run gradle wrapper first run brew install gradle  If installation successful run gradle wrapper from project root    Source and thanks  http   gradle org docs current userguide gradle wrapper html and https   stackoverflow com users 745574 rage

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In my case gradle-wrapper jar got corrupted after replacing a bunch of files  Reverting to original one resolved the problem

[android-studio] Could not find or load main class org.gradle.wrapper.GradleWrapperMain

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