Project has no project.properties file

Question

I am developing Android app in Eclipse.

Currently, eclipse complains:

"Project has no project.properties file! Edit the project properties to set one."

But I do have project.properties file under my project root folder. Why it complains?

This problem causes several of the resources in R.java can not be resolved in Activity. How to get rid of this problem?

Answer 1

Right click on project -->Android Tools-->Fix Project Properties.....

Answer 2

Sometime the 'Fix Project properties...' is not useful. I suggest that you can open that file and edit+save it, then delete the 'project.properties' file. At last you can create a new 'project.properties' file and paste the content of the old 'project.properties' file's content.

That worked for me.

Answer 3

The accepted answer may had the problem solved a few years ago but it doesn't work anymore with the more recent tools.

This is a known bug on Eclipse.

The only way to solve this problem is by creating again a project.properties file, which no one posted how it looks inside so I'll be posting this as an answer:

# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
# project structure.
#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt

# Project target.
target=android-19

Please note: set the correct target API for your project.