Windows is failing when conan cache is restored, try adding /.conan to cache

Author: macumber

.github/workflows/app_build.yml

@@ -224,9 +224,6 @@ jobs:
         OS_APP_VERSION=$(cat version.txt)
         echo OS_APP_VERSION=$OS_APP_VERSION >> $GITHUB_ENV
 
-        CONAN_INSTALL_MD5=$(md5sum ConanInstall.cmake | awk '{print $1}')
-        echo CONAN_INSTALL_MD5=$CONAN_INSTALL_MD5 >> $GITHUB_ENV
-
         echo PLATFORM_NAME=${{ matrix.PLATFORM_NAME }} >> $GITHUB_ENV
         echo CPACK_BINARY_DEB=${{ matrix.CPACK_BINARY_DEB }} >> $GITHUB_ENV
         echo CPACK_BINARY_IFW=${{ matrix.CPACK_BINARY_IFW }} >> $GITHUB_ENV
@@ -264,6 +261,9 @@ jobs:
           echo "~/Qt/QtIFW-3.2.2/bin/" >> $GITHUB_PATH
         fi;
 
+        CONAN_INSTALL_MD5=$(md5sum ConanInstall.cmake | awk '{print $1}')
+        echo CONAN_INSTALL_MD5=$CONAN_INSTALL_MD5 >> $GITHUB_ENV
+
     # TODO: cache the QtIFW folder too
 
     - name: Cache entire build directory
@@ -357,7 +357,9 @@ jobs:
       id: cacheconan
       uses: actions/cache@v2
       with:
-        path: ~/.conan
+        path: |
+          ~/.conan
+          /.conan
         key: ${{ matrix.os }}-conan-cache-${{ env.CONAN_INSTALL_MD5 }}
 
     - name: Did restoring the conan-cache work? No
@@ -374,6 +376,7 @@ jobs:
       run: |
           ls ~/.conan/
           ls ~/.conan/data/
+          ls /.conan
 
     - name: Create Build Environment and locate openstudio
       # Some projects don't allow in-source building, so create a separate build directory