I have an Android Studio (Bumblebee 2021.1.1) project, composed of a main app plus two imported libraries, one Java and one native, developed by me.
At a certain point in time - I cannot recall any event related to this, - the compiler has stopped recognizing the code changes.
If I write something random (e.g. my name, or "aaaaa") within a code that has thus far compiled successfully , the IDE marks this in red as error, however, when I press Ctrl+F9 ("Make Project"), the compiler does not detect any change in code and ends with "BUILD SUCCESSFUL". This happens also when I explicitly save the modified code. The only way I have to make the compiler detect the change is to launch "Rebuild Project". I have tried all the solutions proposed in Android communities (delete ".idea" and ".gradle" folders, invalidate cache, etc.), to no avail. To be noted that I have other projects on the same PC with the same Android Studio instance, but the always-successful-build only happens with the project mentioned above. Can anybody please help me? This is very frustrating, because, even for a tiny code modification, I have to rebuild all, which is very time consuming. Thank you very much.
Related
I'm working on a 1M+ LOC with tons of XML files. The problem I usually get is that the R.xxx classes are usually unresolved after reopening Android Studio (currently I use AS 3.4, but this happened long before). The only solution I know is: close AS, remove .idea folder and then open AS again. This solution works but quite annoying since I lost my workspace information (like opened files history).
I wonder any of you guys experience this and if you have a better solution, please share with me.
I guarantee that the project I am working on has correct configuration and no syntax errors.
I updated tools in my Eclipse first by going to Help->Check For Updates and installing everything i that it suggested. Then by going to Window->Android SDK Manager and updating multiple things including my SDK version.
After I have finished my update all my Android projects got a nice red box with an x inside it. I explored the projects and noticed that none of them had any errors inside the project just the project itself had the error icon. I searched online and i found that other people had similar problems. So i thought i found the solution. Alas after cleaning and building the project I got additional error icons next to multiple java files in my projects. Eclipse cannot locate the automatically generated R files when it tries to import them and all the imports are selected red.
I tried deleting the whole content of .android directory (starting with specific few files then the whole content) but that did not bring desired results.
So i have deleted the newly generated files and restored all the old ones.
When I clean and build the projects again all the errors disappear but only until I try to run the project again and then same error appears:
Your project contains error(s), please fix it before running it.
I have also found a related question. It claims that there must be a problem with my xml files. I did not modify any of my xml files since updating the tools so I dont know what could cause them to have errors.
Any ideas as to what is going on??
I've found that eclipse is now picking up errors that it didn't pick up before, because they updated lint, you may have to check all your files and see if there is an error because of this, if it doesn't work try removing Android from the build and reattach it, clean the project, build project, make sure the activities are using the right R files and check what lint says, its like a little square with a tick in it I think.
I had exactly the same problem, solved by removing any imports of R in my code and then cleaning the project
Strangest thing just happened. Even though I have done this 2 times before I have again deleted all my files in .android folder exited my Eclipse and opened it back up again. All the errors were gone and most of my projects work correctly. I have spend a lot of time on this problem and i dont know how it got resolved but Im glad its working again.
My app was working and I did not change a single thing in the source code.
Eclipse updated and now when I try to run the app it doesn't open and that error messages shows up where you have to force close it. It doesn't even have the other option of wait like I have seen before.
I know this is very little information but that is all I have and that is why I am so frustrated. I reverted back ... I reinstalled eclipse and the android plugin. I tested Hello World and that worked fine. I am so lost. This really sucks. Please help.
If you have third-party JARs in your project, then I experienced the same thing this morning. You can verify this (poor choice of words, I know) if your LogCat shows a VerifyError with no helpful information as the cause of the problem.
The solution that worked for me was to check these items in Project Properties > Java Build Path > Order and Export.
If this doesn't help, can you post the LogCat output?
I've run into the same issue whether I have 3rd party JARs or not. As sastraxi says, when this is a result of a 3rd party JAR, fixing the build path often fixes things. I often find the most effective solution, however, is to click Project -> Clean. This realigns all resources and rebuilds the project according to whatever the new SDK's rules.
Hope this helps,
FuzzicalLogic
After everything running normally for a few weeks, we're suddenly getting the following message printed in Eclipse's Console every few seconds.
R.java was modified manually! Reverting to generated version!
The project still compiles and runs normally but seems to take a little longer than usual. Cleaning and rebuilding doesn't help the issue. The R file is getting generated correctly and no other errors are showing up throughout the project. The problem is present on both developers' machines.
Does anyone have any idea what's going on? Everything I could find deals with the R file not being generated. Thanks!
Well, that was an odd one. One of our developers accidentally checked in a version of the .project file that included a builder that was incompatible with the Android SDK. Even after finding that and removing the entry we still had to open the project's Properties > Builders and disable/reenable any of the builders in order for it to take effect. Restarting eclipse (or even my machine) wasn't enough.
Related to the question here, is the Android Library Update step necessary and, if not, can it be removed from the startup and/or build process? A manual update seems like an appropriate option, especially if it improves build times and you already have a previous clean compile.
You can disable Android Development Toolkit from General -> Startup and Shutdown.
this may not exactly answer your question, but if you do have a lot of projects it will rebuilt all of it when you open eclipse. what i do myself is i "close" the projects that I'm not working on and I find it more tolerable
If you don't need to debug your native code, you could simply not add native support in the first place and just build it on the command line when needed. Then your eclipse project would simply act as a Java only project and build quickly.
I had this problem with 50 ish projects in my workspace. Not all of them are open at once. Still the 'Android Library Update' would show up every time I needed to update a small thing on every project and really slow me down.
I tried following but the last one worked like a charm for me.
Obviously, opening only related projects helps too.
Removing Build Automatically gets rid of this problem but makes twice more problems. You end up wasting more time manually building the projects. Didn't work for me at all.
Selectively building only the projects that changed helps too.
But the main thing that completely fixed this problem for me was following
Go to Window->Preference->Android->Build and make sure the third check box Skip packaging and dexing until export or launch. is marked on.