Cannot open/ import project on Mac that was started on Windows

[jamesatlasp]

I am having problems opening a project built on a Windows Computer on my Mac. (Using Version: 4.3.1). The arduino project is checked out from git.

What we have tried:

1. replacing the .project file with an empty one as suggested in issue Absolute paths in .project file prevent sharing of Arduino projects #34 and trying to import the folder (nothing shows up in Project Explorer)
2. Import the project with the Windows .project file (gives you a folder called "c" in the explorer). Interestingly, under Project Properties, the Arduino tab only shows "Not a CDT project" So, to fix this I tried right clicking on project and select New -> Other -> C/C++ project and select the Arduino toolchain. This results in an error box (reason and internal error are blank. Details reports "java.lang.NullPointerException")

As far as I can tell, .project contains only relative paths, so WHY won't sloeber let this project open?

Contents of .project:

<?xml version="1.0" encoding="UTF-8"?> <projectDescription> <name>EMM_SBM_Master</name> <comment></comment> <projects> </projects> <buildSpec> <buildCommand> <name>io.sloeber.core.inoToCpp</name> <arguments> </arguments> </buildCommand> <buildCommand> <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name> <triggers>clean,full,incremental,</triggers> <arguments> </arguments> </buildCommand> <buildCommand> <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name> <triggers>full,incremental,</triggers> <arguments> </arguments> </buildCommand> </buildSpec> <natures> <nature>org.eclipse.cdt.core.cnature</nature> <nature>org.eclipse.cdt.core.ccnature</nature> <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature> <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature> <nature>io.sloeber.arduinonature</nature> </natures> <linkedResources> <link> <name>core/core</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/packages/arduino/hardware/avr/1.6.23/cores/arduino</locationURI> </link> <link> <name>core/variant</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/packages/arduino/hardware/avr/1.6.23/variants/mega</locationURI> </link> <link> <name>libraries/EEPROM</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/packages/arduino/hardware/avr/1.6.23/libraries/EEPROM</locationURI> </link> <link> <name>libraries/Ethernet2</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/libraries/Ethernet2/1.0.4</locationURI> </link> <link> <name>libraries/NTPClient</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/libraries/NTPClient/3.1.0</locationURI> </link> <link> <name>libraries/SD</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/libraries/SD/1.2.2</locationURI> </link> <link> <name>libraries/SPI</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/packages/arduino/hardware/avr/1.6.23/libraries/SPI</locationURI> </link> <link> <name>libraries/Wire</name> <type>2</type> <locationURI>ECLIPSE_HOME/arduinoPlugin/packages/arduino/hardware/avr/1.6.23/libraries/Wire</locationURI> </link> </linkedResources> </projectDescription>

[jantje]

there is .project and .cproject.
You take both under version control or none.
Unfortunately I can not test these things as I do not have the hardware.
But I'm pretty sure that, when you have .cproject and . project in your version control it is a good idea to open the project properties>arduino and select apply/close
This should happen automagically but ....

[jamesatlasp]

Thank you for the tip. Using a default .gitignore for eclipse CDT lists .cproject in the ignore list (arg!)